Covenant· Premium Member
Omega Seamaster Professional 300M
Sure, once every 50 years. Or so GS claims with their vacuum-sealed compartment, as the movement's "only" 25 years old we can't know this for sure yet. But the point is, it's much less hassle and upkeep than either mechanical or Spring Drive.The 9f also has a gear train much like a typical mechanical watch that does require service as well.
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