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I wanted to document and share my recent experience having my 2015 Sinn 103 A Sa B Limited Edition serviced by West Coast Watch Service Center (WCWSC), since this may help other U.S. Sinn owners know what to expect.
I purchased the watch new from WatchBuys in December 2015. By May 2026, after about 10½ years of ownership, it was stopping, not holding power reliably, and not keeping time properly. I reached out to WatchBuys, and they directed me to WCWSC.
In summary, WCWSC performed…
Sinn 103 A Sa B Service Experience with West Coast Watch Service (WCWSC)
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