1972 Omega Seamaster Chronometer Electronic F300 198 0018 - What batteries do these take? | Omega Forums
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
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How to change battery on Omega Seamaster professional 300m quartz watch 2265.80, cal. 1538 movement - YouTube
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