Omega Seamaster Professional Omega should only have a Renata battery fitted right? In the majority of cases this is right and is our preferred brand,... | By CM Watch Repair | Facebook
Seamaster 300 M Mid Size Quartz - 2561.80.00 | OMEGA®
1972 Omega Seamaster Chronometer Electronic F300 198 0018 - What batteries do these take? | Omega Forums
OMEGA Seamaster Professional 300m Date 2562.80 Used Battery Replaced | eBay