Omega Speedmaster Speedmaster Professional Moonwatch SpeedyMoon

Reference ST 345.0809

Omega Speedmaster Professional Moonwatch SpeedyMoon

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.

Buy Now on Jomashop

This is an affiliate link

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

Current Listings

Omega Speedmaster "First Omega in Space" (FOIS) w/ Box & Papers

Omega - 310.30.40.50.06.001 · $6,999

A Omega Speedmaster 'First Omega in Space' watch with original box and papers.

Condition: Very good condition, some light signs of wear
Year Of Purchase: 2025
Box And Papers Included: Yes

Posted at

Feb 1, 2026, 6:49 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers!

Omega - 329.30.44.51.01.001 · $5,995

This Omega Speedmaster Racing Chronograph is a pre-owned timepiece in good condition, featuring a 44.25mm diameter case and a stainless steel bracelet.

Condition: Pre-owned with minor wear
Case Size: 44.25mm
Bracelet Material: stainless steel

Posted at

Feb 1, 2026, 5:51 PM

Active

View listing on r/WatchExchange

2025 Omega Speedmaster Racing 44mm - 329.32.44.51.01.001 - Price Reduced!

Omega - 329.32.44.51.01.001 · $6,195

This Omega Speedmaster Racing Co-Axial Master Chronometer Chronograph features a modern Caliber 9900 movement and bold orange racing accents.

Condition: Fantastic preowned condition, barely worn
Strap material: black micro-perforated leather with orange rubber lining
Movement type: Caliber 9900 Master Chronometer, Co-Axial, anti-magnetic, column-wheel chronograph
Power reserve: approximately 60-hour

Posted at

Feb 1, 2026, 5:02 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Professional White Dial 42mm

Omega - 310.30.42.50.04.001 · $7,250

For sale is a 42MM Omega Speedmaster Professional White - Ref 310.30.42.50.04.001, complete with presentation box, booklets, Meta Chronometer card, pictogram certificate card, and warranty card.

Condition: preowned, fantastic condition with desk marks on the bracelet/clasp
Case size: 42mm diameter
Water resistance: no specified value
Box and papers: yes, included

Posted at

Feb 1, 2026, 4:58 PM

Active

View listing on r/WatchExchange

Omega Speedmaster “Silver Snoopy Award” 50th Anniversary Ref. 310.32.42.50.02.001 | 2025 | Brand New | Full Set

Omega - 310.32.42.50.02.001 · $14,959

The Omega Speedmaster Silver Snoopy Award 50th Anniversary is a highly collectible modern Speedmaster celebrating NASA's Silver Snoopy Award and Omega's pivotal role in space exploration.

Condition: Brand new, unworn
Year: 2025
Case Size: 42mm
Movement Type: manual wind

Posted at

Feb 1, 2026, 4:14 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Two Counters Chronograph 44mm – BOX & PAPERS – 311.90.44.51.03.001

Omega - 311.90.44.51.03.001

The Omega Speedmaster Two Counters Chronograph is a 44mm watch with a chronograph function.

Posted at

Feb 1, 2026, 3:58 PM

Active

View listing on r/WatchExchange

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 watch commemorates the 50th anniversary of the Apollo 8 mission, featuring a black ceramic case and laser-ablated dial to represent the lunar surface. It has a Calibre 1869 movement with blackened bridges and mainplate.

Condition: UNWORN
Case material: black ceramic
Case size: 44.25mm
Movement: Calibre 1869

Posted at

Feb 1, 2026, 1:57 PM

Active

View listing on r/WatchExchange

OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$17,500🔥

OMEGA - 311.30.40.30.01.001 · $17,500

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
Maker: OMEGA
Model name: Speedmaster Calibre 321 'Ed White'
Case size: 39.7mm diameter

Posted at

Feb 1, 2026, 1:45 PM

Active

View listing on r/WatchExchange