ApacheDriver wrote:
Trying to determine if my circa 2001 B-1 has had its original 68 movement replaced during a service with a 78 SQ movement. It had a "full service" in 2010, and it came to me (used) with a COSC certificate. Did it come this way when new, or does BUSA add a COSC cert when the movement is upgraded? Thanks!
My understanding is that if it is a A68062, then no, but yes for A68362 and A78362, as the latter two are COSC certified. However, I do not know if they provide a certificate if they replace the original movement in an A68062 with a Calibre Breitling 78.