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

OMEGA SPEEDMASTER PROFESSIONAL MOONWATCH 35735000 also known as Sapphire Sandwich. Warranty card dated 2011. Comes with all accessories, box and papers as bought new. Can provide references to serious buyer. [WTS] $5750

OMEGA SPEEDMASTER PROFESSIONAL MOONWATCH 35735000 also known as Sapphire Sandwich. Warranty card dated 2011. Comes with all accessories, box and papers as bought new. Can provide references to serious buyer. $5750

OMEGA - 35735000 · $5,750
This Omega Speedmaster Professional Moonwatch, also known as the Sapphire Sandwich, is a pre-owned timepiece with a warranty card dated 2011. It comes with all original accessories, box, and papers.

  • Condition: New with accessories and box
  • Year: 2011
Posted at
Jan 27, 2026, 3:35 AM
Active
[WTS] Omega Speedmaster 3520.53 Box, Manual, Card - $2,850

Omega Speedmaster 3520.53 Box, Manual, Card - $2,850

Omega - 3520.53 · $2,850
This is a Omega Speedmaster 3520.53 Full Kit in good condition, featuring an automatic movement and a steel case on an original Omega Steel bracelet.

  • Condition: Good condition with usage marks and minimal oxidation on subdials
  • Case size: 39mm
  • Bracelet size range: 7.25-7.5 inch wrists
  • Movement type: Automatic
Posted at
Jan 26, 2026, 9:09 PM
Active
[WTS] Omega Speedmaster Broadarrow. $3450 only !! Very Accurate...

Omega Speedmaster Broadarrow. $3450 only !! Very Accurate...

The Omega Speedmaster Broadarrow is a high-end watch for sale, described as very accurate.

  • Shipping: Fedex with insurance
  • Location: NJ USA
Posted at
Jan 26, 2026, 7:41 PM
Active
[WTS] Omega Speedmaster Legend Schumacher ref 3506.61 like new *PRICE DROP*

Omega Speedmaster Legend Schumacher ref 3506.61 like new *PRICE DROP*

Omega - 3506.61 · $4,350
This Omega Speedmaster Legend Schumacher edition features a striking red dial, engraved case back, and stainless steel bracelet with full links.

  • Condition: Like new, unworn
  • Case materials: stainless steel
  • Bracelet size: full links attached
Posted at
Jan 26, 2026, 7:01 PM
Active
[WTS] Omega Speedmaster Reduced ref 3222.80 like new *PRICE DROP*

Omega Speedmaster Reduced ref 3222.80 like new *PRICE DROP*

Omega - 3222.80 · $3,350
This Omega Speedmaster Day-Date ref 3222.80 features a vibrant blue dial, stainless steel bracelet, day, date, month, chronograph, and 24-hour indicators.

  • Condition: like new
  • Case material: stainless steel
  • Bracelet type: stainless steel with full links
Posted at
Jan 26, 2026, 6:53 PM
Active
[WTS] Omega Speedmaster Racing Cart - 39mm

Omega Speedmaster Racing Cart - 39mm

Omega - 3510.80 · $4,050
This Omega Speedmaster Racing Cart Edition features a 39mm case and comes with the full set, including original box, card, authentication papers, and extra links.

  • Condition: Mint
  • Case size: 39mm
  • Movement serviced: true
Posted at
Jan 26, 2026, 4:26 PM
Active
[WTS] Omega Speedmaster 38 Chronograph 324.30.38.50.02.001 $3999

Omega Speedmaster 38 Chronograph 324.30.38.50.02.001 $3999

This Omega Speedmaster 38mm is a chronograph watch in excellent condition, with original stickers still present and includes the box, papers, and an open warranty card.

  • Condition: Like new mint condition
  • Case size: 38mm
  • Features: Chronograph
Posted at
Jan 26, 2026, 1:11 PM
Active