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.

Buy Now on Jomashop

This is an affiliate link

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 "The One That Actually Fits" – Serviced, & Sharp ref 3510.50

Omega - 3510.50 · $2,200

This Omega Speedmaster 'Reduced' model features a Triple Date layout and is known for its vintage charm, clean dial, and sharp lugs.

Condition: Excellent / Serviced 2025
Movement Type: Automatic
Bracelet: Original steel with additional links
Shipping Location: New York City

Posted at

Mar 6, 2026, 5:51 PM

Active

View listing on r/WatchExchange

OMEGA Speedmaster Racing 329.30.44.51.04.001 2022 Full Set

OMEGA - 329.30.44.51.04.001 · $6,200

This Omega Speedmaster Racing is a complete set with inner and outer boxes, manual, COSC card, warranty card, and hang tag.

Condition: Excellent
Warranty Expiration: May 2027
Size: for 7.5” wrist

Posted at

Mar 6, 2026, 4:31 PM

Active

View listing on r/WatchExchange

Omega Speedmaster 3511.50 Reverse Panda JAPAN EDITION

Omega - 3511.50 · $2,150

For sale is an Omega Speedmaster Reduced 3511.50, running great and all functions work properly.

Condition: great condition with light signs of wear

Posted at

Mar 6, 2026, 4:01 PM

Active

View listing on r/WatchExchange

OMEGA SPEEDMASTER 145.022-69 PREMOON

OMEGA - 145.022-69 · $6,000

A charming vintage chronograph with a great dial and original DO90 bezel, sold with an original Omega bracelet.

Condition: Pre-owned, with signs of wear
Bracelet type: Original 1039
Clasp type: Omega clasp

Posted at

Mar 6, 2026, 3:05 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega - 145.022-78 · $5,050

This Omega Speedmaster Professional Moonwatch features a black tritium dial with even yellow patina and is presented in its original state with period-correct details.

Condition: Very good overall shape, original condition with some polishing on the case
Year: 1978
Size: 42mm diameter

Posted at

Mar 6, 2026, 10:46 AM

Active

View listing on r/WatchExchange