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 Day Date 3523.80

Omega Speedmaster Day Date 3523.80

Omega - 3523.80 · $2,225
This Omega Speedmaster Day Date features a beautiful blue dial and is in excellent condition with minimal signs of wear.

  • Condition: Excellent
  • Payment Methods Accepted: crypto, most other methods
  • Local Pickup Available: yes
  • Trades Accepted: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
May 15, 2026, 2:37 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 COMPLETE SET 2025

Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 COMPLETE SET 2025

For sale is an Omega Speedmaster Professional Moonwatch, a high-end watch in excellent condition with almost no signs of wear.

  • Condition: excellent condition
  • Warranty card included: true
  • Payment methods accepted: crypto, other payment methods (except PayPal)
  • Trading brands allowed: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
May 15, 2026, 2:23 PM
Active
[wts] Omega Speedmaster Ed White 311.30.40.30.01.001 2023

Omega Speedmaster Ed White 311.30.40.30.01.001 2023

Omega - 311.30.40.30.01.001 · $14,500
The Omega Seamaster Ed White is a well-preserved watch with a 39.7mm case and iconic 321 movement, featuring minor surface hairlines.

  • Condition: Mint condition
  • Case size: 39.7mm
  • Movement: 321
Posted at
May 15, 2026, 12:18 PM
Active
[WTS] Omega Speedmaster Racing Ref. 326.30.40.50.01.001 – Full Set – $3,400 Shipped CONUS (Zelle Only)

Omega Speedmaster Racing Ref. 326.30.40.50.01.001 – Full Set – $3,400 Shipped CONUS (Zelle Only)

This is a well-balanced 40mm Speedmaster that wears incredibly comfortably and offers a more modern, sport-oriented take on the classic Speedmaster design.

  • Condition: Very good overall condition, some light signs of wear
  • Bracelet size: adjustable, extra links included
  • Box and papers included: full set
Posted at
May 15, 2026, 9:46 AM
Active
[WTS] 2026 Omega Speedmaster Moonwatch Hesalite 42mm 310.30.42.50.01.001 — Like New Condition, Box & Papers

2026 Omega Speedmaster Moonwatch Hesalite 42mm 310.30.42.50.01.001 — Like New Condition, Box & Papers

The Omega Speedmaster Moonwatch Hesalite features a black stepped dial and a manually wound caliber 3861 movement, preserving the iconic design heritage tied to Omega’s role in space exploration.

  • Condition: Like new condition
  • Case size: 42mm diameter
  • Lug to lug: 47.5mm
  • Thickness: 13.2mm
Posted at
May 15, 2026, 9:29 AM
Active
[WTS] Omega Speedmaster Automatic Date Black Dial - Ref. 175.0084 / Cal. 1152

Omega Speedmaster Automatic Date Black Dial - Ref. 175.0084 / Cal. 1152

This Omega Speedmaster is a black dial automatic date watch with reference number 175.0084 and caliber 1152, featuring a nice bracelet that fits up to a 7 inch wrist.

  • Condition: Honest worn condition, no major or moderate cosmetic defects
  • Bracelet size compatibility: up to 7 inch wrist
Posted at
May 15, 2026, 9:25 AM
Active
[WTS] Omega Speedmaster Apollo XI 20th Anniversary (1989) - US Market ltd 1068/2000 - Full Set w/ 1450 "Grail" Bracelet - tritium patina

Omega Speedmaster Apollo XI 20th Anniversary (1989) - US Market ltd 1068/2000 - Full Set w/ 1450 "Grail" Bracelet - tritium patina

This Omega Speedmaster Professional Apollo XI 20th Anniversary Edition is a highly collectible piece of space and horological history, released in 1989 to commemorate the 20th anniversary of the 1969 lunar landing. It features a unique case-side engraving, comes as a complete collector's set, and includes the legendary 1450 bracelet.

  • Condition: Honest, vintage condition with surface wear on the case and scratches on the crystal
  • Movement: Caliber 861
  • Dimensions: 42mm case size | 20mm lug width (diameter)
  • Bracelet: Omega Ref. 1450 "Holy Grail" bracelet with 808 solid end links
Posted at
May 15, 2026, 8:49 AM
Active
[WTS][US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set

[US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set

Omega - 311.30.40.30.01.001 · $15,500
This Omega Speedmaster Calibre 321 features a black dial and is housed in a 39.7mm case.

  • Condition: Pristine with minor hairlines on clasp, case, and bracelet
  • Case size: 39.7mm diameter
  • Straps included: NATO strap and velcro strap
Posted at
May 15, 2026, 7:28 AM
Active
[WTS][US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set

[US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set

This Omega Speedmaster Moonwatch Professional features a white dial and is fully set, including box, historical booklet, user manual, microfiber cloth, master chronometer card, and warranty card.

  • Condition: pristine condition with minor hairlines on clasp, case, and bracelet
Posted at
May 15, 2026, 7:23 AM
Active