?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.
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Harper Hall - 2024-03-03
Received my product in no time. The quality is superior, and the price is very fair. The customer service team is also very helpful and understanding.