Omega Speedmaster Movements: 1861 vs. 1863 - Bob's Watches
New Steel Omega Speedmaster 321 Just Announced (ref. 311.30.40.30.01.001)
![Omega] Now discontinued caliber 1863, are you going to miss it? : r/Watches](https://i.redd.it/91or64c9mpa61.jpg "Omega] Now discontinued caliber 1863, are you going to miss it? : r/Watches")
Omega] Now discontinued caliber 1863, are you going to miss it? : r/Watches
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Omega Speedmaster Movements: 1861 vs. 1863 - Bob's Watches
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Omega Speedmaster Movements: 1861 vs. 1863 - Bob's Watches
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Omega Caliber 1863 Complete Guide & Specifications - Millenary Watches
![Omega] A closer look at the discontinued calibre 1863 on the Omega Speedmaster : r/Watches](https://preview.redd.it/cwdtyr1h8vg61.jpg?auto=webp&s=2fe9d43ea1fa1d393392ad823bec85648d9cc892 "Omega] A closer look at the discontinued calibre 1863 on the Omega Speedmaster : r/Watches")