10+ Omega Calibre 2500 Date Change US. Wound, set date and time to an atomic reference. Omega calibres cannot be replicated in counterfeit products.
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Genuine omega caliber 1120 barrel complete with mainspring. We're also not allowed to change the lift in the lever, something we can do in the swiss lever escapement — bring them up by a couple hundredths of a millimetre. 28800, later changed to 25200 bph. Is it basically the 8500 with day functionality?