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 Michael Schumacher 39mm (previously ebay authenticated with card) naked watch, have box not original box

Omega Speedmaster Michael Schumacher 39mm (previously ebay authenticated with card) naked watch, have box not original box

This Omega Speedmaster Michael Schumacher edition is a naked watch without its original box. It has been eBay authenticated and comes with the authentication card.

Posted at
Oct 26, 2025, 9:54 PM
Active
[WTS] Omega Speedmaster Professional White 42MM - Ref 310.30.42.50.04.001 - 04/25

Omega Speedmaster Professional White 42MM - Ref 310.30.42.50.04.001 - 04/25

A 42MM Omega Speedmaster Professional White, a popular and highly sought-after model known for its reliability and style.

  • Condition: preowned in fantastic condition
  • Case size: 42mm
Posted at
Oct 26, 2025, 6:16 PM
Active
[WTS] Omega Speedmaster FOIS 40mm Numbered Edition – Excellent Condition, New Lincoln Bracelet, Professional Ed White Mod, Box + Warranty Card

Omega Speedmaster FOIS 40mm Numbered Edition – Excellent Condition, New Lincoln Bracelet, Professional Ed White Mod, Box + Warranty Card

Omega - FOIS · $4,250
Up for sale is my Numbered Editon Omega Speedmaster FOIS (First Omega in Space) in very good condition, featuring a professionally installed Ed White–style mod that gives it a beautifully vintage, classic Speedmaster look.

  • Condition: Excellent overall with light, honest wear
  • Bracelet: Uncle Seiko Lincoln bracelet, 6.75 inches long with extra links
  • Case Size: 40mm diameter
Posted at
Oct 26, 2025, 2:51 PM
Active
[WTS] Omega Speedmaster Moonphase

Omega Speedmaster Moonphase

Omega - 3575.20 · $5,225
Up for sale is an Omega Speedmaster Moonphase ref. 3575.20 in excellent condition! Very minimal signs of wear, runs great and includes full kit.

  • Condition: Excellent
  • Shipping restrictions: CONUS only
Posted at
Oct 26, 2025, 2:01 PM
Active
[WTS] 2023 Omega Speedmaster Moonwatch Professional | 310.30.42.50.01.002 | Complete | Sapphire Sandwich | Speedy | Micro-adjust Clasp

2023 Omega Speedmaster Moonwatch Professional | 310.30.42.50.01.002 | Complete | Sapphire Sandwich | Speedy | Micro-adjust Clasp

A gorgeous watch highlighted by the two sapphire crystals, and makes for arguably the perfect daily; comfortable, simple, and practical.

  • Condition: Excellent
  • Reference type: Professional
  • Crystal material: Sapphire
  • Movement: Calibre GA
Posted at
Oct 26, 2025, 12:26 PM
Active
[WTS] NEW 2025 Omega Speedmaster Professional Moonwatch ‘Silver Snoopy Award’ - Ref. 310.32.42.50.02.001 - $14,430

NEW 2025 Omega Speedmaster Professional Moonwatch ‘Silver Snoopy Award’ - Ref. 310.32.42.50.02.001 - $14,430

Omega - 310.32.42.50.02.001 · $14,430
The 'Silver Snoopy Award' 50th Anniversary edition Omega Speedmaster Professional Moonwatch features blue sub-dials and a bezel, along with a unique caseback.

  • Condition: Brand New
  • Year: 2025
  • Set Contents: full set with inner + outer box, cards, special loupe, cleaning cloth and instruction manuals
Posted at
Oct 26, 2025, 7:53 AM
Active
[WTS] 2024 Omega Speedmaster Moonwatch Sapphire REF 31030425001002 Full kit (Box, Papers, Extra links)

2024 Omega Speedmaster Moonwatch Sapphire REF 31030425001002 Full kit (Box, Papers, Extra links)

Omega - 31030425001002 · $6,999
2024 Omega Speedmaster Moonwatch Sapphire in excellent condition, barely worn, and well-kept. Includes full box, papers, extra links, and owners manual.

  • Condition: Pre-owned (2024 piece, well kept and in amazing condition)
  • Year: 2024
  • Included Accessories: Full box, papers, extra links, owners manual
Posted at
Oct 26, 2025, 12:14 AM
Active
[WTS] Omega Speedmaster3590.50 – Unpolished Classic

Omega Speedmaster3590.50 – Unpolished Classic

Omega - 3590.50 · $55,000
a classic, unpolished Omega Speedmaster with a unique character

  • Material: steel
  • Band: leather strap
Posted at
Oct 25, 2025, 9:37 PM
Active
[WTS]: Omega Speedmaster Professional Moonwatch Full kit 12/24

: Omega Speedmaster Professional Moonwatch Full kit 12/24

This Omega Speedmaster Professional Moonwatch Hesalite is a full kit in very good condition. It features a Hesalite crystal and comes with a warranty card dated 12/24.

  • Condition: Very nice shape, small marks and scratches
  • Warranty card date: 12/24
  • Shipping method: FedEx
Posted at
Oct 25, 2025, 7:34 PM
Active