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

Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Omega - 311.93.44.51.99.001 · $7,600

Omega Speedmaster Grey Side Of The Moon with a grey dial and 44mm case size.

Condition: great, with small chip on edge of case back
Case Size: 44mm diameter

Posted at

Mar 7, 2026, 1:53 PM

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Omega Speedmaster Reduced 3510.50 Excellent Condition + Serialized Hand Tag

Omega - 3510.50 · $2,750

For sale is an Omega Speedmaster Reduced in excellent condition with hardly any signs of wear, it runs great and functions properly.

Condition: Excellent Condition
Payment Methods Accepted: multiple (including crypto) with small fee
Meeting Options: local meetup or shipped

Posted at

Mar 7, 2026, 1:39 PM

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Omega Speedmaster Racing 329.30.44.51.04.001 COMPLETE SET 2024

Omega - 329.30.44.51.04.001 · $6,350

This Omega Speedmaster Racing features a white dial and comes with the complete set, including double boxed packaging and documentation.

Condition: Excellent
Box and papers included: complete set
Warranty card date: 2024
Payment methods accepted: crypto, other payment methods

Posted at

Mar 7, 2026, 1:30 PM

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Omega Speedmaster Professional Moonwatch Hesalite cal. 3861

Omega - Speedmaster Professional Moonwatch Hesalite cal. 3861 · $5,500

This Omega Speedmaster Professional Moonwatch features a hesalite crystal, closed steel caseback, and comfortable quick adjust clasp bracelet. It has the most up-to-date 3861 caliber and retains the original design language and proportions.

Condition: clean piece with minimal wear and no condition notes
Bracelet size limit: 7in
Dimensions: 42mm X 20 lug width X 47h (lug to lug)
Crystal type: hesalite crystal with 13.8cc

Posted at

Mar 7, 2026, 12:48 PM

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Omega "Silver Snoopy" Speedmaster 2025

Omega - 310.32.42.50.02.001 · $15,299

This Omega Speedmaster Silver Snoopy Award is a commemorative edition that pays tribute to Omega's crucial role in the safe return of Apollo 13, featuring a highly detailed caseback animation of Snoopy and a mission-inspired design language.

Condition: Brand new, unworn
Case size: 42mm diameter
Water resistance: 50m depth rating

Posted at

Mar 7, 2026, 12:44 PM

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OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA - 311.92.44.30.01.001 · $10,000

The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 commemorates the 50th anniversary of the Apollo 8 mission, featuring a black ceramic case and a skeletonized dial with laser-ablated lunar surface details.

Condition: UNWORN
Case material: black ceramic
Case diameter: 44.25mm
Movement: Calibre 1869

Posted at

Mar 6, 2026, 8:25 PM

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OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$16,000🔥

OMEGA - 311.30.40.30.01.001 · $16,000

The OMEGA Speedmaster Calibre 321 Ref. 311.30.40.30.01.001 is a faithful recreation of the reference 105.003, famously worn by astronaut Ed White during America's first spacewalk.

Condition: UNWORN
Movement: Calibre 321 column-wheel chronograph movement
Case size: 39.7mm diameter
Bezel material: black ceramic

Posted at

Mar 6, 2026, 8:15 PM

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