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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D
                                  ------------
             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

     TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a)

                                (Amendment No. 4)

                         ------------------------------
                                CENTERPULSE LTD.
                                (Name of Issuer)

Registered Shares, par value CHF 30 per share                    Not applicable*
     (Title of class of securities)                               (CUSIP number)

                                   Eric Stupp
                           c/o InCentive Capital Ltd.
                                Baarrerstrasse 8
                                    6301 Zug,
                                   Switzerland

                                 With a copy to:

                           Michael S. Immordino, Esq.
                                Latham & Watkins
                                 99 Bishopsgate
                                 London EC2M 3XF
                                     England
                               (+44) 207-710-1076
            (Name, address and telephone number of person authorized
                     to receive notices and communications)

                                 August 15, 2003
             (Date of event which requires filing of this statement)

       If the filing person has previously filed a statement on Schedule 13G to
report the acquisition that is the subject of this Schedule 13D, and is filing
this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the
following box [_].

                         (Continued on following pages)
                                   Page 1 of 15

____________
*    There is no CUSIP Number assigned to the Registered Shares. CUSIP
     No. 152005104 has been assigned to the American Depositary Shares of
     Centerpulse Ltd., which are quoted on the New York Stock Exchange under the
     symbol "CEP".



CUSIP NO.  152005104*                 13D                          Page 2 of 15
           ---------

--------------------------------------------------------------------------------
 1.   Name of Reporting Person
      I.R.S. Identification No. of Above Person (Entities Only)
      InCentive Investment (Jersey) Ltd
--------------------------------------------------------------------------------
 2.   Check the Appropriate Box if a Member of a Group:
      (a) [_]
      (b) [X]
--------------------------------------------------------------------------------
 3.   SEC Use Only

--------------------------------------------------------------------------------
 4.   Source of Funds:
      N/A
--------------------------------------------------------------------------------
 5.   Check Box if Disclosure of Legal Proceedings Is Required Pursuant
      to Item 2(d) or 2(e): [_]
--------------------------------------------------------------------------------
 6.   Citizenship or Place of Organization:
      Jersey, UK
--------------------------------------------------------------------------------
                      7.    Sole Voting Power:
   NUMBER OF                0
    SHARES           -----------------------------------------------------------
 BENEFICIALLY         8.    Shared Voting Power:
   OWNED BY                 1,592,577
     EACH            -----------------------------------------------------------
   REPORTING          9.    Sole Dispositive Power:
    PERSON                  0
     WITH            -----------------------------------------------------------
                     10.    Shared Dispositive Power:
                            1,592,577
--------------------------------------------------------------------------------
11.   Aggregate Amount Beneficially Owned by Reporting Person:
      1,592,577
--------------------------------------------------------------------------------
12.   Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares:
                                                                             [_]
--------------------------------------------------------------------------------
13.   Percent of Class Represented by Amount in Row (11):
      13.5%
--------------------------------------------------------------------------------
14.   Type of Reporting Person:
      IV
--------------------------------------------------------------------------------

______________

*      There is no CUSIP Number assigned to the Registered Shares. CUSIP
       No. 152005104 has been assigned to the American Depositary Shares of
       Centerpulse Ltd., which are quoted on the New York Stock Exchange under
       the symbol "CEP".

                                     Page 2



CUSIP NO.  152005104*                                             Page 3 of 15
           ---------

--------------------------------------------------------------------------------
 1.   Name of Reporting Person
      I.R.S. Identification No. of Above Person (Entities Only)
      InCentive Capital AG
--------------------------------------------------------------------------------
 2.   Check the Appropriate Box if a Member of a Group:
      (a) [_]
      (b) [X]
--------------------------------------------------------------------------------
 3.   SEC Use Only

--------------------------------------------------------------------------------
 4.   Source of Funds:
      WC
--------------------------------------------------------------------------------
 5.   Check Box if Disclosure of Legal Proceedings Is Required Pursuant
      to Item 2(d) or 2(e): [_]
--------------------------------------------------------------------------------
 6.   Citizenship or Place of Organization:
      Switzerland
--------------------------------------------------------------------------------
                      7.    Sole Voting Power:
   NUMBER OF                645,000
    SHARES           -----------------------------------------------------------
 BENEFICIALLY         8.    Shared Voting Power:
   OWNED BY                 1,592,577
     EACH            -----------------------------------------------------------
   REPORTING          9.    Sole Dispositive Power
    PERSON                  645,000
     WITH            -----------------------------------------------------------
                     10.    Shared Dispositive Power
                            1,592,577
--------------------------------------------------------------------------------
11.   Aggregate Amount Beneficially Owned by Reporting Person:
      2,237,577
--------------------------------------------------------------------------------
12.   Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares:
                                                                             [_]
--------------------------------------------------------------------------------
13.   Percent of Class Represented by Amount in Row (11):
      18.9%
--------------------------------------------------------------------------------
14.   Type of Reporting Person:
      IV
--------------------------------------------------------------------------------

________________

*      There is no CUSIP Number assigned to the Registered Shares. CUSIP
       No. 152005104 has been assigned to the American Depositary Shares of
       Centerpulse Ltd., which are quoted on the New York Stock Exchange under
       the symbol "CEP".

                                     Page 3




CUSIP NO.  152005104*                                           Page 4 of 15
           ---------

--------------------------------------------------------------------------------
 1.   Name of Reporting Person
      I.R.S. Identification No. of Above Person (Entity Only)
      InCentive Asset Management Ltd
--------------------------------------------------------------------------------
 2.   Check the Appropriate Box if a Member of a Group:
      (a) [_]
      (b) [X]
--------------------------------------------------------------------------------
 3.   SEC Use Only

--------------------------------------------------------------------------------
 4.   Source of Funds:
      N/A
--------------------------------------------------------------------------------
 5.   Check Box if Disclosure of Legal Proceedings Is Required Pursuant
      to Item 2(d) or 2(e): [_]

--------------------------------------------------------------------------------
 6.   Citizenship or Place of Organization:
      Switzerland
--------------------------------------------------------------------------------
                      7.    Sole Voting Power:
   NUMBER OF                0
    SHARES           -----------------------------------------------------------
 BENEFICIALLY         8.    Shared Voting Power:
   OWNED BY                 0
     EACH            -----------------------------------------------------------
   REPORTING          9.    Sole Dispositive Power:
    PERSON                  0
     WITH            -----------------------------------------------------------
                     10.    Shared Dispositive Power:
                            2,255,968
--------------------------------------------------------------------------------
11.   Aggregate Amount Beneficially Owned by Reporting Person:
      2,255,968
--------------------------------------------------------------------------------
12.   Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares:
                                                                             [_]
--------------------------------------------------------------------------------
13.   Percent of Class Represented by Amount in Row (11):
      19.1%
--------------------------------------------------------------------------------
14.   Type of Reporting Person:
      IA
--------------------------------------------------------------------------------

____________

*      There is no CUSIP Number assigned to the Registered Shares. CUSIP
       No. 152005104 has been assigned to the American Depositary Shares of
       Centerpulse Ltd., which are quoted on the New York Stock Exchange under
       the symbol "CEP".

                                     Page 4



CUSIP NO. 152005104*                                              Page 5 of 15
          ---------

--------------------------------------------------------------------------------
 1.   Name of Reporting Person
      I.R.S. Identification No. of Above Person (Entities Only)
      Mr Rene Braginsky
--------------------------------------------------------------------------------
 2.   Check the Appropriate Box if a Member of a Group:
      (a) [_]
      (b) [X]
--------------------------------------------------------------------------------
 3.   SEC Use Only

--------------------------------------------------------------------------------
 4.   Source of Funds:
      N/A
--------------------------------------------------------------------------------
 5.   Check Box if Disclosure of Legal Proceedings Is Required Pursuant
      to Item 2(d) or 2(e): [_]

--------------------------------------------------------------------------------
 6.   Citizenship or Place of Organization:
      Switzerland
--------------------------------------------------------------------------------
                      7.    Sole Voting Power:
   NUMBER OF                6,203
    SHARES           -----------------------------------------------------------
 BENEFICIALLY         8.    Shared Voting Power:
   OWNED BY                 0
     EACH            -----------------------------------------------------------
   REPORTING          9.    Sole Dispositive Power:
    PERSON                  6,203
     WITH            -----------------------------------------------------------
                     10.    Shared Dispositive Power:
                            2,255,968
--------------------------------------------------------------------------------
11.   Aggregate Amount Beneficially Owned by Reporting Person:
      2,262,171
--------------------------------------------------------------------------------
12.   Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares:
                                                                             [_]
--------------------------------------------------------------------------------
13.   Percent of Class Represented by Amount in Row (11):
      19.1%
--------------------------------------------------------------------------------
14.   Type of Reporting Person:
      IN
--------------------------------------------------------------------------------

______________

*      There is no CUSIP Number assigned to the Registered Shares. CUSIP
       No. 152005104 has been assigned to the American Depositary Shares of
       Centerpulse Ltd., which are quoted on the New York Stock Exchange under
       the symbol "CEP".

                                     Page 5



      Item 1. Security and Issuer

This Amendment No. 4 to the Statement on Schedule 13D, dated August 15, 2003,
with respect to the Registered Shares, par value CHF 30 per share (the
"Registered Shares"), of Centerpulse Ltd., a company incorporated with limited
liability under the laws of Switzerland (the "Issuer"), hereby amends and
supplements the Statement on Schedule 13D (the "Amended Schedule 13D") initially
filed on October 15, 2002, as amended. The Registered Shares trade on the SWX
Swiss Exchange and other European exchanges and American Depository Shares
("ADSs") for Registered Shares trade on the New York Stock Exchange under the
symbol "CEP". Each ADS represents 0.1 Registered Share. The address of the
principal executive offices of the Issuer is Andreasstrasse 15, CH-8050 Zurich,
Switzerland.

      Item 4. Purpose of the Transaction

      Item 4 of the Amended Schedule 13D is hereby amended and supplemented by
      adding the following after the last paragraph:

On August 14, 2003 the Board of Directors of InCentive Capital AG issued a
report to its shareholders (the "Report") in which it recommended that the
shareholders accept the Zimmer Offer. The Report makes this recommendation based
on the fact that the price offered in the Zimmer Offer is fair from a financial
point of view and is considerably higher than the price offered pursuant to the
Tender Offer. The Board's recommendation is subject to the proviso that Zimmer
will timely offer the Zimmer common shares offered for exchange in accordance
with its duties under the Swiss takeover laws and regulations and that the
Zimmer Offer is otherwise completed in accordance with recommendations of the
Swiss Takeover Board.

InCentive Capital AG has been advised by its principal shareholders, including
Mr. Braginsky, that they intend to withdraw their shares from the Tender Offer
and tender their shares in the Zimmer Offer.

      Item 7. Materials to be filed as Exhibits.

      Item 7 of the Amended Schedule 13D is hereby amended and supplemented by
      adding the following:

Exhibit 6     Press Release dated August 15, 2003, issued by InCentive Asset
              Management AG, entitled "Board of Directors of InCentive Capital
              AG Recommends to its Shareholders to Accept the Public Tender
              Offer of Zimmer Holdings, Inc."

Exhibit 7     Report dated August 14, 2003 of the Board of Directors of
              InCentive Capital AG, in respect of the public exchange and
              purchase offer of Zimmer Holdings, Inc., Warsaw (USA), of June 19,
              2003 for all outstanding bearer shares of InCentive Capital AG

                                     Page 6



                                    SIGNATURE

     After reasonable inquiry and to the best knowledge and belief of the
undersigned, the undersigned certifies that the information set forth in this
statement is true, complete and correct.

                                       INCENTIVE INVESTMENT (JERSEY) LTD.

                                       By: /s/ Michael Dee
                                           ----------------------------------
                                           Name:  Michael Dee
                                           Title: Chairman

                                       By: /s/ Marc C. Bruppacher
                                           ----------------------------------
                                           Name:  Dr. Marc C. Bruppacher
                                           Title: Director


                                       INCENTIVE CAPITAL AG

                                       By: /s/ Hans Kaiser
                                           ----------------------------------
                                           Name:  Hans Kaiser
                                           Title: Director

                                       By: /s/ Eric Stupp
                                           ----------------------------------
                                           Name:  Eric Stupp
                                           Title: Director


                                       INCENTIVE ASSET MANAGEMENT LTD.

                                       By: /s/ Paul Wyler
                                           ----------------------------------
                                           Name:  Paul Wyler
                                           Title: Director

                                       By: /s/ Raoul Bloch
                                           ----------------------------------
                                           Name:  Dr. Raoul Bloch
                                           Title: Member of management board


                                       RENE BRAGINSKY
                                       By: /s/ Rene Braginsky
                                           ----------------------------------
                                           Name:  Rene Braginsky


Date: August 15, 2003

                                     Page 7



                                   SCHEDULE B

       Schedule B of the Amended Schedule 13D is hereby amended and supplemented
       by substituting in their entirety footnotes (2) and (3) thereof with the
       following footnotes:

(2) Mr. Stupp beneficially owns 4 Registered Shares of Centerpulse. Mr. Stupp
used personal funds to purchase such Registered Shares. Mr. Stupp has sole
voting and dispositive power over such shares. Mr. Stupp intends to tender such
Registered Shares in the Zimmer Offer.

(3) Mr. Kaiser beneficially owns 36,284 Registered Shares of Centerpulse.
Mr.Kaiser used personal funds to purchase 32,284 of such Registered Shares, and
Mr. Kaiser has sole voting and dispositive power over such shares. The other
4000 shares beneficially owned by Mr. Kaiser are held by a family member of Mr.
Kaiser and information as to the voting and dispositive power over such shares,
as well as information as to the funds used to purchase such shares, is
currently unavailable. Mr. Kaiser is a party to the Tender Agreement but has
decided to withdraw his Registered Shares from the Tender Offer. Instead, Mr.
Kaiser has decided to tender his Registered Shares to Zimmer in connection with
the Zimmer Offer.

                                     Page 8



                                   SCHEDULE C

         Schedule C of the Amended Schedule 13D is hereby amended and
         supplemented by substituting in their entirety footnote (4) thereof
         with the following footnote:

(2) Mr. Wyler beneficially owns 1,000 Registered Shares of Centerpulse. Mr.
Wyler used personal funds to purchase such Registered Shares. Mr. Wyler has sole
voting and dispositive power over such shares. Mr. Wyler intends to tender such
Registered Shares in the Zimmer Offer.

                                     Page 9



                                  EXHIBIT INDEX

Exhibit No     Description of Exhibit
----------     ----------------------

Exhibit 6      Press Release dated August 15, 2003, issued by InCentive Asset
               Management AG, entitled "Board of Directors of InCentive Capital
               AG Recommends to its Shareholders to Accept the Public Tender
               Offer of Zimmer Holdings, Inc."

Exhibit 7      Report dated August 14, 2003 of the Board of Directors of
               InCentive Capital AG, in respect of the public exchange and
               purchase offer of Zimmer Holdings, Inc., Warsaw (USA), of June
               19, 2003 for all outstanding bearer shares of InCentive Capital
               AG

                                    Page 10