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. 39mm. White Ceramic. Very nice.

Omega Speedmaster. 39mm. White Ceramic. Very nice.

Omega - Speedmaster · $3,100
This Omega Speedmaster is a 39mm watch with white ceramic and strong lume. It's a great timepiece that comes with additional photos available upon request.

  • Case size: 39mm
  • Material: white ceramic
  • Lume strength: strong
Posted at
Jan 17, 2026, 10:17 AM
Active
[WTS] Omega Speedmaster FOIS – Full Set – $4,300 Shipped OBO

Omega Speedmaster FOIS – Full Set – $4,300 Shipped OBO

Omega - Speedmaster FOIS · $4,300
The Omega Speedmaster FOIS is a widely regarded, wearable watch that captures classic early Speedmaster proportions with its 39.7mm straight-lug case.

  • Condition: Very good overall
  • Case size: 39.7mm diameter
  • Movement type: Manual winding
  • Crystal material: Hesalite
Posted at
Jan 16, 2026, 11:54 PM
Active
[WTS] Omega Speedmaster Reduced

Omega Speedmaster Reduced

A used Omega Speedmaster Reduced purchased from Japan with original box and papers.

  • Condition: Great working shape
  • Original Box And Papers: Yes, with Japanese documentation
  • Extra Links: Fitting up to 7.5-8 inches
Posted at
Jan 16, 2026, 9:13 PM
Active
[WTS] 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 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 with a skeletonized and laser-ablated dial. The watch is powered by the Calibre 1869 movement and comes in an ultimate set with various accessories.

  • Condition: UNWORN
  • Case material: black ceramic
  • Diameter: 44.25mm
  • Movement: Calibre 1869 with blackened bridges and mainplate
Posted at
Jan 16, 2026, 8:45 PM
Active
[WTS] Omega Reverse Panda Speedmaster Full Set $11,900 including CONUS shipping 310.30.42.50.01.004

Omega Reverse Panda Speedmaster Full Set $11,900 including CONUS shipping 310.30.42.50.01.004

For sale is the new Speedmaster reverse panda, comes with full links and all accessories.

  • Condition: Unworn, essentially new condition
  • Case Size: 42mm diameter
  • Shipping Included: continental US
Posted at
Jan 16, 2026, 8:06 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Sapphire Sandwich – Full Set – Sept 2025 Warranty – Bracelet + Leather

Omega Speedmaster Professional Moonwatch Sapphire Sandwich – Full Set – Sept 2025 Warranty – Bracelet + Leather

Omega - Sapphire Sandwich · $6,700
This Omega Speedmaster Professional Moonwatch features a 42mm stainless steel case with sapphire crystal front and display caseback, powered by a manual-wind movement.

  • Condition: Very good condition
  • Case size: 42mm diameter
  • Crystal material: Sapphire front & display caseback
  • Movement type: Manual-wind Co-Axial Master Chronometer
Posted at
Jan 16, 2026, 6:31 PM
Active
[WTS] OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$18,000🔥

OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$18,000🔥

OMEGA - 311.30.40.30.01.001 · $18,000
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
  • Case material: stainless steel
  • Diameter: 39.7mm
Posted at
Jan 16, 2026, 6:20 PM
Active
[WTS] Omega. Speedmaster Moonwatch. "1971 Apollo XV". $5350 Only

Omega. Speedmaster Moonwatch. "1971 Apollo XV". $5350 Only

This Omega Speedmaster Moonwatch, celebrating the Apollo 15 mission, features a black dial with blue and red accents and comes with an OEM bracelet.

  • Condition: Good condition (7.5/10)
  • Case size: 42mm
  • Bracelet length range: 7.5inch hand
  • Dial color: Black with Blue and Red Accents
Posted at
Jan 16, 2026, 1:21 PM
Active
[WTS] 2024 Omega Speedmaster "Ed White" 39.7mm 311.30.40.30.01.001 Black Dial - $16,250

2024 Omega Speedmaster "Ed White" 39.7mm 311.30.40.30.01.001 Black Dial - $16,250

Omega - 311.30.40.30.01.001 · $16,250
2024 Omega Speedmaster "Ed White" in 39.7mm case size with a black dial.

  • Case diameter: 39.7mm
Posted at
Jan 16, 2026, 10:23 AM
Active