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 Blue moonphase 304.33.44.52.03.001

Omega Speedmaster Blue moonphase 304.33.44.52.03.001

This Omega Speedmaster features a blue dial with moonphase display, and comes with its original box, papers, manual, and strap.

  • Condition: In great shape
  • Water Resistance: 30m
Posted at
Feb 13, 2026, 1:29 PM
Active
[WTS] Omega Speedmaster GMT 231.10.43.52.06.001 – Full Set – Grey Dial – 2014 – $3,850

Omega Speedmaster GMT 231.10.43.52.06.001 – Full Set – Grey Dial – 2014 – $3,850

A sharp, highly versatile Speedmaster with excellent wrist presence and everyday wearability.

  • Condition: Good condition
  • Year: 2014 production
  • Bracelet material: Stainless steel
  • Dial color: Grey dial
Posted at
Feb 13, 2026, 1:06 PM
Active
[WTS] Omega Speedmaster 324.23.38.50.02.001 38mm Co-Axial

Omega Speedmaster 324.23.38.50.02.001 38mm Co-Axial

The Omega Speedmaster 324.23.38.50.02.001 features a unique gold and green bezel, sits on a green leather strap with quick release function, and is in excellent condition from 2024.

  • Condition: Excellent condition
  • Diameter: 38mm
  • Strap material: Green leather
Posted at
Feb 13, 2026, 1:02 PM
Active
[WTS] Omega Speedmaster Reduced - 39mm Two Tone - Ref 175.0033 - Price Reduced!

Omega Speedmaster Reduced - 39mm Two Tone - Ref 175.0033 - Price Reduced!

Omega - 175.0033 · $2,695
A beautiful Omega Speedmaster Reduced with a white dial and 39mm two-tone design, featuring all working functions and a high-quality leather AM strap from Casanova.

  • Condition: great vintage condition, light hairlines on bezel and case
  • Case size: 39mm
  • Band: high quality leather AM strap from Casanova
Posted at
Feb 13, 2026, 1:01 PM
Active
[wts] Omega Speedmaster Moonwatch Professional Hesalite, 2025, full big box, $5800

Omega Speedmaster Moonwatch Professional Hesalite, 2025, full big box, $5800

This Omega Speedmaster Moonwatch Professional features the Co-Axial Master Chronometer Caliber 3861, has a stainless steel case with Hesalite crystal, and comes in its full big box set. It is manual wind, METAS certified, and has 50 meters water resistance.

  • Condition: mint condition
  • Case size: 42mm
  • Water resistance: 50m
  • Crystal type: Hesalite
Posted at
Feb 13, 2026, 11:22 AM
Active
[WTS] Omega Speedmaster Moonwatch Professional 42mm White Dial 310.30.42.50.04.001 Complete

Omega Speedmaster Moonwatch Professional 42mm White Dial 310.30.42.50.04.001 Complete

A 42mm Omega Speedmaster Moonwatch Professional with a white dial is being sold.

  • Condition: In very good condition, rated at 9.7/10
  • Condition Rating: 9.7/10
  • Included Accessories: Inner & outer boxes, manual, booklet, Pictogram card, Master Chronometer card, removed links and warranty card
Posted at
Feb 13, 2026, 10:41 AM
Active
[WTS] Omega Speedmaster White 2024 Full set + OEM Red racing leather strap - Warranty until July 2029 - 310.30.42.50.04.001 - $7300 + 🏷 🔥 🚀

Omega Speedmaster White 2024 Full set + OEM Red racing leather strap - Warranty until July 2029 - 310.30.42.50.04.001 - $7300 + 🏷 🔥 🚀

This is the Omega Speedmaster White, considered by the seller to be one of the most beautiful Speedmasters.

  • Condition: good condition
  • Strap Type: red leather racing strap
  • Warranty Date: until July 2029
Posted at
Feb 13, 2026, 9:44 AM
Active
[WTS] Omega Speedmaster FOIS 310.30.40.50.06.001 box and papers $6600+ 🏷️

Omega Speedmaster FOIS 310.30.40.50.06.001 box and papers $6600+ 🏷️

The Omega Speedmaster FOIS is available for sale with its iconic design and features such as a hesalite-like form sapphire crystal and CVD coated dial. It has a 39.7mm flat link bracelet with comfort release adjustment system and a 50 hour power reserve.

  • Condition: Crystal/dial: clean, Case: clean, Caseback: light scratches, Bracelet: light scratches, Clasp: one surface level scratch
  • Water resistance: 5 bar
  • Bracelet adjustment system: comfort release
  • Crystal type: hesalite-like sapphire
Posted at
Feb 12, 2026, 10:16 PM
Active
[WTS] Omega Speedmaster Reduced 39mm 3510.61 “Red Schumacher” | Watch Only

Omega Speedmaster Reduced 39mm 3510.61 “Red Schumacher” | Watch Only

Omega - 3510.61 · $2,999
This Omega Speedmaster Reduced 39mm is a 'Red Schumacher' variant, featuring Hesalite with minor marks, and a service history unknown.

  • Condition: Good Pre-Owned Condition
  • Case Size: 39mm diameter
  • Band Links: 18 links
  • Wrist Fit: 6.5 inch wrist comfortably
Posted at
Feb 12, 2026, 8:38 PM
Active