Omega Speedmaster Speedmaster Professional Moonwatch SpeedyMoon

Reference ST 345.0809

About this watch

The Omega ST 345.0809 Speedmaster Professional Moonwatch SpeedyMoon is a true masterpiece in the world of horology, blending history, functionality, and style. With its iconic design and unique moonphase complication, it's more than just a timepiece; it's a celebration of human achievement and a testament to Omega's craftsmanship. The watch features a reliable hand-wound movement with 17 jewels and a power reserve of 45 hours, making it suitable for everyday wear and special occasions. Its durable stainless steel construction and comfortable wearability with customizable straps make it a perfect choice for those who appreciate both elegance and functionality. Whether you're a seasoned collector or just starting your watch journey, this watch offers something truly special.
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Key Features

  • Hand-wound Omega caliber 866 movement
  • Unique moonphase complication
  • 42mm stainless steel case with tachymeter bezel
  • Plexi glass crystal with water resistance up to 50m
  • Stick and dot indexes on black dial
  • Comfortable wearability with customizable straps

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch SpeedyMoon
Reference
ST 345.0809
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph
  • Moonphase
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Plexi
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster white dial on bracelet with oem rubber included

Omega Speedmaster white dial on bracelet with oem rubber included

Omega - Speedmaster · $7,500
A white Omega Speedmaster on bracelet, sold in good condition with some minor cosmetic issues.

  • Condition: Good condition with some swirls and light scratches (8.5/10)
  • Box And Papers: Full kit
  • Purchase Receipt: Original
Posted at
Jan 13, 2026, 2:42 PM
Active
[WTS] Omega Speedmaster. Sapphire Sandwich. Automatic. Box, Papers.

Omega Speedmaster. Sapphire Sandwich. Automatic. Box, Papers.

Omega Speedmaster, also known as the Sapphire Sandwich, is a high-end automatic watch that features strong lume.

  • Water Resistance: 30m
  • Box And Papers: true
Posted at
Jan 13, 2026, 1:38 PM
Active
[WTS] Omega Speedmaster Sapphire

Omega Speedmaster Sapphire

A Omega Speedmaster Moonwatch listed for sale, stated to run great with excellent case condition.

  • Condition: Excellent
  • Case condition: Excellent
Posted at
Jan 13, 2026, 8:40 AM
Active
[WTS] Omega Speedmaster Two Tone Reduced

Omega Speedmaster Two Tone Reduced

Omega - 3714.20.80 · $2,500
A rare two-tone Omega Speedmaster reduced, featuring a white dial and gold subdials, housed in an 18k gold bezel.

  • Condition: Good, some wear on the case and bezel
  • Movement: Cal 1140
  • Size: 39mm diameter
Posted at
Jan 12, 2026, 8:37 PM
Active
[WTS] Omega Speedmaster Racing Chronograph Silver Dial Watch 326.30.40.50.02.001 Complete Set

Omega Speedmaster Racing Chronograph Silver Dial Watch 326.30.40.50.02.001 Complete Set

The Omega Speedmaster Racing features a striking silver white dial with bold chronograph hands and counters, paired with a stainless steel case and bracelet for a timeless design with modern presence.

  • Condition: Excellent
  • Case material: stainless steel
  • Bracelet type: bracelet
  • Movement type: chronograph movement
Posted at
Jan 12, 2026, 6:52 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional 310.30.42.50.01.002 "Sapphire Sandwich."

Omega Speedmaster Moonwatch Professional 310.30.42.50.01.002 "Sapphire Sandwich."

The Omega Speedmaster Moonwatch Professional, also known as the 'Sapphire Sandwich', is a modern iteration of the timepiece that went to the moon. It features a sapphire crystal front and caseback, redesigned bracelet, and Co-Axial Master Chronometer movement.

  • Condition: Excellent
  • Case material: Sapphire crystal front and caseback
  • Bracelet condition: Excellent
  • Movement: Co-Axial Master Chronometer
Posted at
Jan 12, 2026, 4:55 PM
Active
[WTS] LNIB 3 Month Old Omega Speedmaster Pro Sapphire

LNIB 3 Month Old Omega Speedmaster Pro Sapphire

This listing is for a new Omega Speedmaster Pro Sapphire Sandwhich watch. It has been worn for only three months and shows no signs of wear or scratches, with all original packaging and accessories included.

  • Condition: New condition, lightly used for 3 months
  • Age: 3 months old
  • Size: Assuming standard watch size (no specific details given)
Posted at
Jan 12, 2026, 4:05 PM
Active
[WTS] Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Additional Details: Omega SpeedMaster Dark Side of the Moon with a full-ceramic case and buckle.

  • Condition: Mint, like-new
  • Case material: full ceramic
  • Year: 2019
Posted at
Jan 12, 2026, 2:45 PM
Active
[WTS] 20mm Omega Speedmaster Bracelet 1499 / 842 – Production (1996–1998)

20mm Omega Speedmaster Bracelet 1499 / 842 – Production (1996–1998)

Omega - 1499 / 842 · $495
A high-quality Omega factory bracelet option with excellent build and taper, known among Speedmaster collectors.

  • Production Period: 1996-1998
  • Wrist Size Fit: 7 3/4 inches
Posted at
Jan 12, 2026, 1:09 PM
Active