Omega Speedmaster Speedmaster Professional Moonwatch Apollo-Soyuz 20th Anniversary
Reference 3691.50.31
About this watch
The Omega Speedmaster Professional Moonwatch Apollo-Soyuz 20th Anniversary is a rare and luxurious timepiece that blends history with exceptional craftsmanship. Crafted from yellow gold, this watch boasts a closed case back, sapphire glass, and a hand-wound movement, the Omega caliber 1863. Its chronograph functionality allows for accurate elapsed time measurement, while its water resistance rating of up to 50 meters ensures durability. The classic black dial with stick and dot indexes ensures readability, and the combination of gold accents creates a striking contrast. With only 200 units produced, this limited edition piece is a coveted collector's item that captures the essence of what a luxury watch should be.
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Key Features
- Yellow Gold Case
- Sapphire Glass
- Omega Caliber 1863 Hand-Wound Movement
- Chronograph Functionality
- Water Resistance up to 50 Meters
- Limited Edition Piece (200 units produced)
- Luxurious Yellow Gold Design
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch Apollo-Soyuz 20th Anniversary
- Reference
- 3691.50.31
- Movement
- 1863
- Movement Features
-
- Hours, Minutes, Small Seconds
- Chronograph
- Case
- Yellow Gold 42mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings
![[WTS] 2022 Omega Speedmaster Racing 40mm 326.32.40.50.06.001 Full Set Excellent](https://external-preview.redd.it/hVNZLhh3WfbzbyrHTldHlFTAcXQyK4x2CTmRnigFXcA.jpeg?auto=webp&s=27eb97130ceb2bbc1cd1a70ca86275403873c42e)
2022 Omega Speedmaster Racing 40mm 326.32.40.50.06.001 Full Set Excellent
A sporty, modern Speedmaster with racing‑inspired detailing.
- Condition: Excellent
- Size: 40mm diameter
- Year: 2022
![[WTS] Omega Speedmaster Reduced 39mm - 3510.50](https://preview.redd.it/e8mequu63yzg1.jpg?width=640&crop=smart&auto=webp&s=365840273688c83f6144b7df653285e5c33fbfc6)
Omega Speedmaster Reduced 39mm - 3510.50
A Omega Speedmaster Reduced in 39mm size, running strong with a small issue with the chronograph function.
- Condition: pre-owned, good condition
- Size: 39mm diameter
- Wrist size: not specified
![[WTS] Omega Speedmaster Day Date 3523.80](https://preview.redd.it/w7wpxmpy0yzg1.jpg?width=640&crop=smart&auto=webp&s=0624206aff4b6a4d22a923ee1e0ef2474d7fdacc)
Omega Speedmaster Day Date 3523.80
This Omega Speedmaster Day Date features a beautiful blue dial and is in excellent condition.
- Condition: Excellent
- Payment Methods Accepted: Cryptocurrency and other methods (except PayPal)
- Location: Southwest FL
- Local Meeting Available: Yes
![[WTS] Omega Speedmaster Date 3511.50](https://preview.redd.it/htju0vwevxzg1.jpg?width=640&crop=smart&auto=webp&s=3759a62af27a8e9cce27492da4193a969d22a359)
Omega Speedmaster Date 3511.50
This Omega Speedmaster date is a rare reverse panda dial model only sold in Japan.
- Condition: great condition
- Location: southwest FL
- Payment Methods Accepted: crypto with small fee, local meetups
- Payment Methods Not Accepted: PayPal
![[WTS] “May the 4th Be With You” 2026 Card Omega Speedmaster Sapphire Complete Set *$7,200 + label*](https://preview.redd.it/x8icrclmlxzg1.jpg?width=640&crop=smart&auto=webp&s=657f83a806ba23d0aaabff15f208e06a5ceed220)
“May the 4th Be With You” 2026 Card Omega Speedmaster Sapphire Complete Set *$7,200 + label*
A brand new Omega Speedmaster Sapphire Sandwich Complete Set with all cards included, travel case, and literature.
- Condition: Brand new, unworn and unsized
- Year: 5/4/2026
- Contents: All cards included, travel case and Speedmaster literature
- Payment methods: Zelle or Wire preferred, Credit Cards accepted +3.5%
![[WTS] 2026 Omega Speedmaster White Full Set](https://preview.redd.it/52z1wg2v8xzg1.jpeg?auto=webp&s=ed1215e4cd73a06b27cb0bea2cbad7a84db2f4d7)
2026 Omega Speedmaster White Full Set
No description provided in the listing
![[WTS][US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set](https://preview.redd.it/k8nhgcz2mwzg1.jpg?width=640&crop=smart&auto=webp&s=79c56515e65c8c224f4fb5fd956029bf2ba4cde8)
[US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set
Up for sale is an Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm, functions perfectly mechanically.
- Condition: pristine condition with minor hairlines on clasp, case, and bracelet
- Diameter: 39.7mm
![[WTS] Omega Speedmaster Hesilate Ref. 310.32.42.50.01.001 Full Set + Original Receipt](https://preview.redd.it/638in08elwzg1.jpg?width=640&crop=smart&auto=webp&s=df96571ac990f1b9da976dc1dee0711629aa9b66)
Omega Speedmaster Hesilate Ref. 310.32.42.50.01.001 Full Set + Original Receipt
This Omega Speedmaster Moonwatch Professional features a Co-Axial Master Chronometer Caliber 3861 and is in excellent overall condition, with the notable exception of a very minor mark on the Hesalite crystal.
- Condition: Excellent overall condition with minor mark on Hesalite crystal and light signs of normal wear on case
- Movement: Co-Axial Master Chronometer Caliber 3861
- Crystal type: Hesalite
- Caseback type: Aftermarket exhibition caseback (original solid also included)
![[WTS][US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set](https://preview.redd.it/tjzoj633lwzg1.jpg?width=640&crop=smart&auto=webp&s=2da259a57fd5686cab7043ac0dd49cd3d252b322)
[US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set
Up for sale is an Omega Speedmaster Moonwatch Professional - White Dial - Full Set Watch is in pristine condition and functions perfectly mechanically, without issue.
- Condition: pristine condition with minor hairlines on clasp, case, and bracelet
- Water Resistance: 30m
- Box Contents: inner box, outer box, removable travel case, historical booklet, user manual, microfiber cloth, master chronometer card, warranty card