Has anyone had luck dating a Sinn according to the serial number? I've tried contacting both watchbuys and RGM and both referred me to Sinn headquarters. Watchbuys as least looked in their system and didn't show it to be sold through them.
The reason I ask is I purchased a used 856 UTC and it seems to have a low serial number (plus the fact that watchbuys didn't sell it) makes me think that it may be due for a service, which is my primary concern. I'd really just like to know how old is it so that I can get a gauge as to when to send it in despite it keeping good time and no other anomalies.
I don't mind calling Sinn directly, however my Deutsche is practically not existent. Another question would be if anyone at Sinn can communicate me with!