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 Silver Snoopy Award – New/Unworn

Omega Speedmaster Silver Snoopy Award – New/Unworn

Omega - 310.32.42.50.02.001 · $14,850
A Omega Speedmaster Silver Snoopy Award celebrating NASA's Silver Snoopy Award presented to Omega following the Apollo 13 mission, featuring an animated Snoopy caseback and silver dial with blue accents.

  • Condition: New / Unworn
  • Case size: 42mm
  • Movement type: Omega Co-Axial Master Chronometer Caliber 3861
Posted at
Mar 17, 2026, 6:53 PM
Active
[WTS] Omega Speedmaster 3570.50- $3900

Omega Speedmaster 3570.50- $3900

Omega - 3570.50 · $3,900
For sale is an Omega Speedmaster 3570.50, a well-maintained timepiece with original accessories.

  • Condition: Good condition
  • Bracelet: Original
Posted at
Mar 17, 2026, 12:18 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 Mint Full Set $3250

Omega Speedmaster Reduced 3510.50 Mint Full Set $3250

Omega - 3510.50 · $3,250
This Omega Speedmaster Reduced from 1998 features a stainless steel case, 39mm in diameter, and a matte black dial with Luminova. The watch has an automatic Omega caliber 3220 movement, which is an ETA 2890-2 with a Dubois-Depraz chronograph module.

  • Condition: Mint
  • Case material: Stainless steel
  • Case size: 39mm diameter
  • Movement type: Automatic Omega caliber 3220 (ETA 2890-2 with Dubois-Depraz chronograph module)
Posted at
Mar 17, 2026, 9:57 AM
Active
[WTS] Omega Speedmaster 38 Co-Axial Chronograph 324.30.38.50.02.001

Omega Speedmaster 38 Co-Axial Chronograph 324.30.38.50.02.001

A silver dial Omega Speedmaster 38 Co-Axial Chronograph in excellent condition. The watch features a chronograph function and is presented on a brown leather strap.

  • Condition: Excellent
  • Case condition: Minimal wear
  • Bracelet condition: Brand-new, unworn
  • Included accessories: Omega inner box, Omega outer box, Instruction manual, Pictograms card, Watchfinder certificate of authenticity, Original Omega stainless steel bracelet, Brown leather strap, Omega Cream Watch Pouch
Posted at
Mar 17, 2026, 8:49 AM
Active
[WTS] Omega Speedmaster 3520.53  - $2,690

Omega Speedmaster 3520.53 - $2,690

Omega - 3520.53 · $2,690
Up for sale is my Omega Speedmaster 3520.53, measuring 39mm with an automatic movement and steel case on an original Omega Steel speedmaster bracelet.

  • Condition: 8.8/10 - great shape with some usage marks and patina on subdials
  • Movement type: automatic
  • Case material: steel
  • Bracelet: original Omega Steel speedmaster bracelet
Posted at
Mar 16, 2026, 10:16 PM
Active
[WTS] 2020 Omega Speedmaster Racing 44.25mm 329.32.44.51.01.001 - Full set

2020 Omega Speedmaster Racing 44.25mm 329.32.44.51.01.001 - Full set

This Omega Speedmaster Racing features a 44.25mm case and a matt black dial with orange accents, powered by the Co-Axial Master Chronometer 9900.

  • Condition: great pre-owned condition
  • Case size: 44.25mm
  • Strap condition: leather strap has small amount of wear
Posted at
Mar 16, 2026, 5:58 PM
Active
[WTS] 2025’ Omega Speedmaster FOIS Complete Set

2025’ Omega Speedmaster FOIS Complete Set

A tribute to the first Omega watch worn in space, this updated Speedmaster FOIS captures the same style in modern form.

  • Condition: pre-owned with minor signs of wear
  • Case size: 40mm diameter
  • Box and papers: complete set, including inner & outer boxes, picto, chrono, warranty card, and booklet
Posted at
Mar 16, 2026, 5:24 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega - 145.022-69 · $5,250
This Omega Speedmaster Moonwatch presents beautifully in full steel, showcasing a strong and sharp case with thick lugs that retain their original shape.

  • Condition: Serviced, lightly polished case
  • Caliber movement serviced: November 2022
  • Bracelet size: up to 7.5 inch / 19cm wrist diameter
  • Case back type: flat case back
Posted at
Mar 16, 2026, 5:18 PM
Active
[WTS] Omega Speedmaster FOIS (bracelet and strap, full set) ($7,250)

Omega Speedmaster FOIS (bracelet and strap, full set) ($7,250)

Omega - FOIS · $7,250
  • Bracelet and strap: full set
Posted at
Mar 16, 2026, 3:23 PM
Active