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

Current Listings

2022 Omega Speedmaster Moonwatch Professional – 310.30.42.50.01.001 - $5899 Shipped

Omega - 310.30.42.50.01.001 · $5,899

For sale is a 2022 Omega Speedmaster Moonwatch Professional in excellent condition, showing light signs of normal wear and running properly.

Condition: Excellent overall condition with light signs of normal wear only
Case size: 42mm
Movement type: Manual wind chronograph
Crystal material: Hesalite

Posted at

Mar 15, 2026, 2:41 AM

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Omega Speedmaster Reduced 39mm Ref. 175.0032 Cal 1140 TRITIUM PATINA

Omega - 175.0032 · $2,550

This Omega Speedmaster Reduced features a beautiful tritium patina on its dial, giving it an authentic vintage character.

Condition: Honest signs of use consistent with its age, scratches on case and bracelet
Movement: Omega Caliber 1140 Automatic (46 jewels)
Case Size: 39mm
Caseback: Solid Omega press on caseback

Posted at

Mar 15, 2026, 1:38 AM

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Omega Speedmaster Reduced 39mm Ref. 175.0032 Cal 3220 Excellent Condition

Omega - 175.0032 · $2,650

This neo-vintage Omega Speedmaster Reduced features a beautifully proportioned 39mm case and an original black dial with tritium luminous material.

Condition: Excellent with very few signs of wear
Case size: 39mm diameter
Movement caliber: 3220 (Automatic, 47 Jewels)
Dial type: Original black dial with SWISS MADE transitional dial

Posted at

Mar 15, 2026, 1:21 AM

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Omega Speedmaster Professional Moonwatch ref. 145.022 circa 1978

Omega - 145.022 · $4,400

A circa 1978 Omega Speedmaster Professional Moonwatch ref. 145.022, featuring a Lemania based caliber 861 movement, in a classic 42mm case.

Condition: Used, with wear and signs of polish
Movement: Lemania based caliber 861
Case size: 42mm diameter
Lug width: 20mm

Posted at

Mar 14, 2026, 8:50 PM

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Omega Speedmaster Professional Moonwatch White Dial Complete Set w/ Box, Papers and Warranty!

Omega - Speedmaster Professional Moonwatch · $6,500

Box: yes, with box and papers
Warranty: still under warranty
Dial: white dial

Posted at

Mar 14, 2026, 5:18 PM

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Omega Speedmaster Moonwatch Sapphire 3861 - full kit bracelet plus leather

Omega - 3861 · $6,490

A Omega Speedmaster Moonwatch Sapphire Sandwich sold as a full kit with both leather and bracelet included.

Condition: Great condition, with some marks on the back of the lugs from strap changes
Warranty: Joma shop warranty until Jan 2028
Strap: Omega leather strap
Bracelet Links: All links included

Posted at

Mar 14, 2026, 4:34 PM

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