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] 2024 Omega Speedmaster Moonwatch Professional 310.30.42.50.01.002 “Sapphire Sandwich”](https://external-preview.redd.it/LIk5Joauzsq1PMVw1w6IICTUxy9cmDcEzFlzCA48tqM.jpeg?auto=webp&s=8aab8c05c70eab0cadcf091ab2805490c79cf38a)
2024 Omega Speedmaster Moonwatch Professional 310.30.42.50.01.002 “Sapphire Sandwich”
The watch being listed is a 2024 Omega Speedmaster Moonwatch Professional in the 310.30.42.50.01.002 'Sapphire Sandwich' model.
- Condition: Pre-owned with slight wear
- Bracelet type: non-quick adjust
- Service history: unknown
- Accuracy: +3 s/d (seconds/minute)
![[WTS] 1997 Omega Speedmaster 'Gemini V' LE of 150 PCS (Ref. 345.0022)](https://preview.redd.it/t0ngd74yii6f1.jpeg?auto=webp&s=7beba2e03f294b61631486f6f95a9bcfbf448d05)
1997 Omega Speedmaster 'Gemini V' LE of 150 PCS (Ref. 345.0022)
This Omega Speedmaster 'Gemini V' LE watch commemorates the NASA Gemini V mission, featuring a unique design with a NASA mission patch in the 9 o'clock sub-dial.
- Condition: Excellent/like new
- Case Size: 42mm
- Bracelet Type: Omega 1499 bracelet
- Bracelet End Pieces: 842
![[WTS] Two Tone Omega Speedmaster Triple Date Moonphase](https://external-preview.redd.it/LPtmDtmcr5ceccbryLfEfNFJXwFHvHuKVVJwuyHxkpU.jpeg?auto=webp&s=0f99953af62e6a25bd99a787d5e8e940d0c5487c)
Two Tone Omega Speedmaster Triple Date Moonphase
A beautiful two-tone Omega Speedmaster triple date moonphase watch with a silky white dial, gold bezel, and moon-phase sub-dial.
- Condition: Good condition with normal wear on the case and bezel
- Movement: Cal 1152
- Size: 39mm diameter
- Case material: Two tone
![[WTS] Two Tone Omega Speedmaster Reduced](https://external-preview.redd.it/w8-wkeNiEyq60tpiHd01NbUeHiv47S--7J_gXy0Zgt4.jpeg?auto=webp&s=0fd98a91dd5016c3da476eea514c628806bc4b0b)
Two Tone Omega Speedmaster Reduced
A two-tone Omega Speedmaster Reduced in overall good condition with a white dial, gold subdials, and an 18k gold bezel.
- Condition: Good condition with wear on the case and bezel
- Movement: Cal 1140
- Case size: 39mm diameter

Omega SPEEDMASTER PROFESSIONAL MOONWATCH 3861 WHITE DIAL 2025 WARRANTY FULL SET
This is a new 2025 model Omega Speedmaster Professional Moonwatch with a 42mm stainless steel case and white dial, featuring a manual-winding chronograph movement with co-axial escapement.
- Condition: Excellent Condition
- Movement: 3861 Manual-Winding Chronograph
- Case material: Stainless Steel
- Diameter: 42mm
![[WTS] Omega Speedmaster Automatic MK40 Day Date Ref 3520.53](https://external-preview.redd.it/7nGkjbMhVxrm84CqOK5ux_m_3x-lP765HQ1Dz5Kr_aU.jpeg?auto=webp&s=914f577263d19c6a84251a5d3b5824ad90e22b02)
Omega Speedmaster Automatic MK40 Day Date Ref 3520.53
One of the coolest Speedmaster variants, featured in A Man and His Watch, with a tritium dial and luminova hands.
- Condition: Pre-owned, with wear and dings on the bezel, insert, and case
- Case size: 39mm diameter

Omega Speedmaster Professional Tokyo 2020 522.30.42.30.03.001
This Omega Speedmaster Professional Tokyo 2020 is a high-end watch that comes with its original boxes and books, but no warranty card. It's in excellent condition.
- Condition: Excellent condition
- Box And Papers: includes
- Warranty Card: no
![[WTS] Omega Speedmaster Professional Sapphire 3861](https://external-preview.redd.it/GFyeMHjiQugc7k3v7DpjwLCL0zKQBy4P6cRRNI8ynoc.jpeg?auto=webp&s=ba20feb41ea99b61fea9993fbc3097cd9d62b82c)
Omega Speedmaster Professional Sapphire 3861
A Omega Speedmaster Professional Sapphire Sandwich sold on an OEM rubber strap, also including an unworn leather strap and full kit of original accessories.
- Condition: Excellent preowned
- Strap included: 2
- Case condition: preowned