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.

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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

Current Listings

Omega Speedmaster Moonphase Blue Dial 44mm 2024 Box & Papers

Omega - 304.33.44.52.03.001 · $8,250

The Omega Speedmaster Moonphase is a complication-driven take on the iconic Speedmaster, combining a classic chronograph layout with a beautifully executed moonphase display and a deep blue dial.

Condition: Excellent
Size: 44mm diameter
Water Resistance: 100m depth rating
Movement Type: Co-Axial automatic movement

Posted at

Jan 3, 2026, 8:22 PM

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Omega Speedmaster Moonphase BOX AND PAPERS 304.33.44.52.03.001

Omega - 304.33.44.52.03.001 · $7,150

For sale is an Omega Speedmaster Moonphase in excellent condition, with only minimal wear on the straps.

Condition: Excellent
Case size: 40mm
Strap type: black leather omega strap

Posted at

Jan 3, 2026, 4:41 PM

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Omega Speedmaster 3510.50 Reduced X2

Omega - 3510.50 · $2,550

Two Omega Speedmaster Reduced watches in excellent condition for sale.

Condition: Excellent
Case Size: 40mm diameter
Payment Methods: Cash, crypto, most credit cards

Posted at

Jan 3, 2026, 3:45 PM

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Omega Speedmaster Professional 3861 Hesalite “Sandwich” – Full AD Kit – 6/24 (spiralwinder caseback) Extras!

Omega - 3861 · $5,995

This Omega Speedmaster Professional Moonwatch is a Hesalite 'sandwich' model with a sapphire display caseback and an original Hesalite caseback included. It features a Cal. 3861 Master Chronometer movement and comes with a full Authorized Dealer kit.

Condition: Daily worn, normal wear/use consistent with daily rotation, never polished
Movement: Cal. 3861 (Master Chronometer)
Bracelet type: Current bracelet with tool-less sliding clasp adjustment
Crystal material: Hesalite, Sapphire

Posted at

Jan 3, 2026, 10:52 AM

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Omega Speedmaster « Broad Arrow » 3594.50

Omega - 3594.50 · $3,600

This Omega Speedmaster Broad Arrow is a highly collectible and historically inspired watch with iconic Broad Arrow hands. It has recently been serviced by a professional watchmaker in France and comes with a 1-year service warranty.

Condition: Excellent overall condition
Service: Recently serviced by a professional watchmaker in France
Warranty: 1-year service warranty from the professional who performed the revision
Bracelet: Original Omega bracelet included

Posted at

Jan 3, 2026, 10:20 AM

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OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET!

OMEGA - 311.92.44.30.01.001 · $10,000

The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 commemorates the 50th anniversary of the Apollo 8 mission, crafted from a single block of black ceramic with a sleek modern aesthetic and a technical artistic tribute to space exploration.

Condition: [UNWORN]
Case material: black ceramic
Diameter: 44.25mm
Movement: Calibre 1869

Posted at

Jan 3, 2026, 6:21 AM

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OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET!

OMEGA - 311.30.40.30.01.001 · $18,000

This 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
Material: stainless steel
Movement: Calibre 321 column-wheel chronograph
Caseback: sapphire

Posted at

Jan 3, 2026, 3:15 AM

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