The Omega caliber 1109 is an automatic movement found in some Omega Seamaster Pro 300M watches from the early 1990s...
Omega SMP
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The number looks to me like a 0 under magnification but...
Solarman102 , 4 hours ago
Hi Solarman102, thanks for posting. It is a cool vintag...
calibercorner , 5 hours ago
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