25+ Omega Speedmaster Mk40 History US. I was lucky to find one in almost nos condition: Slight differences in omega speedmaster mk40 triple day date omega forums.
Power reserve on this watch can last up to 48 hours, when fully wound.
The speedmaster mk40 has a caliber 1151 movement with 44 hours of power reserve. 11mo · tdoan89 · r/watchexchange. I don't realy love de after months of research i finally found my mk40 last week. 3520.53.00) is definitely one of the more colorful and striking pieces from the speedmaster collection.