CERTINA C032407A / C032427A Steel Clasp Buckle For Rubber Strap
This is an original Certina watch buckle.
Certina deployment buckle model # C640.66
Fits Certina watches with case numbers: C032407A / C032427A
The case number is located on the reverse side of the watch
NOTE: If your buckle does not have this number "C640.66", it will not fit the rubber strap.