Omega Speedmaster Professional Moonwatch Apollo-Soyuz 20th Anniversary 3691.50.31
The ref. 3691.50.31 Speedmaster Professional Apollo-Soyuz 20th Anniversary was introduced in 1995 as a limited edition of 200 pieces commemorating the 20th anniversary of the Apollo-Soyuz space rendez-vous. It features a yellow gold case and a black dial with applied markers and encircled subdials. Its caseback…
| Reference | 3691.50.31 |
|---|---|
| Collection | Speedmaster Moonwatch |
| Case diameter | 42 mm |
| Case material | Yellow Gold |
| Bezel | Tachymeter |
| Case shape | Round |
| Case back | Closed |
| Lug width | 20.00 mm mm |
| Movement | Omega caliber 1863Hours |
| Water resistance | 50 m |
| Dial colour | Black |
| Indexes | Stick / Dot |
| Hands | Stick |
| Crystal | Sapphire |
| Year introduced | 1995 |
| Limited edition | Yes |
This is a reference-catalog entry for the Omega Speedmaster Professional Moonwatch Apollo-Soyuz 20th Anniversary 3691.50.31. WatchFlow's Watch Library lets a dealer attach a reference like this to a piece of stock in one click, so the brand, reference and specs are filled in automatically instead of retyped — then that record drives listings, invoices and reports. See how it fits the wider watch inventory management workflow.
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