Servicing the Seagull 3620 (Unitas 6498) – Disassembly

In this tutorial, I will show you how to disassemble the Seagull 3620 movement. This movement is a clone of the Unitas (ETA) 6498 and thus the same process can be used to disassemble both movements. There is also a Seagull 3600 movement that is almost identical to the 3620, however, the second-hand subdial is … Continue reading Servicing the Seagull 3620 (Unitas 6498) – Disassembly