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 White Dial Speedmaster Moon Watch

Omega - 310.30.42.50.04.001 · $7,900

A brand new Omega Speedmaster Moonwatch in white dial, purchased two weeks ago but returned due to personal preference for a different model.

Condition: Pre-owned, essentially brand new
Payment methods: Zelle only
Forms of payment accepted: Zelle

Posted at

Nov 27, 2025, 5:14 PM

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Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega - 105.003-65 · $10,995

The Omega Speedmaster Ed White Ref. 105.003-65 is a highly collectible variant with a stunning brown tropical dial and historic significance as the last straight-lug Speedmaster worn by astronauts during NASA's Gemini missions.

Condition: Very good condition, shows signs of previous polish
Case diameter: 39mm
Year: 1965
Movement: Cal. 321

Posted at

Nov 27, 2025, 3:12 PM

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Omega x Swatch Speedmaster MoonSwatch Mission on Earth - Desert SO33T103 Like New

Omega x Swatch - SO33T103 · $280

This Omega x Swatch Speedmaster MoonSwatch Mission on Earth - Desert is a unique collaboration between the two brands. The watch features a 42mm case diameter, quartz chronograph movement by ETA G10.212, and a water resistance of 30m.

Condition: Like New
Case Diameter: 42mm
Movement: Quartz Chronograph ETA G10.212
Chronograph Height: 13.75mm

Posted at

Nov 27, 2025, 1:15 PM

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Omega Speedmaster Moonphase Master Chronometer – Blue Dial – Full Set (2023)

Omega - 304.33.44.52.03.001 · $7,400

The seller is listing a 2023 Omega Speedmaster Moonphase Master Chronometer with a blue dial and blue ceramic bezel. This watch comes as a complete set, including the presentation box, cards, booklet, card holder, and tag.

Condition: Very good
Case size: 44.25mm diameter
Water resistance: 100m depth rating
Power reserve: 60h

Posted at

Nov 27, 2025, 1:10 PM

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Omega Speedmaster Professional Sapphire Sandwich BNIB 11/21/2025

Omega - 310.30.42.50.01.002

a brand new Omega Speedmaster Professional Sapphire Sandwich, purchased on 11/21/2025 and still in original packaging

Condition: Brand new in box (BNIB)
Year of manufacture: 2021
Date sold by dealer: 11/21/2025

Posted at

Nov 27, 2025, 10:45 AM

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New Omega Speedmaster First Omega in Space Ref 310.30.40.50.06.001 Complete Set

Omega - 310.30.40.50.06.001 · $7,650

This Omega Speedmaster 'First Omega in Space' is a new watch that comes with all its original accessories and is ready to be shipped.

Condition: New, still stickered
Box Status: Double boxes
Papers Status: Omega cards, manual, and warranty card

Posted at

Nov 26, 2025, 9:05 PM

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Omega Speedmaster Day Date Panda 323.30.40.40.04.001 40mm

Omega - 323.30.40.40.04.001 · $3,499

Additional Details: Additional Details: Omega Speedmaster Day Date Panda with a 7.5" bracelet.

Bracelet length: 7.5 inches
Payment methods: Zelle, Venmo, or Western Union

Posted at

Nov 26, 2025, 4:49 PM

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Omega Speedmaster Triple Date - 3520.50

Omega - 3520.50 · $1,995

A 39mm Omega Speedmaster Triple Date in great condition, perfect as a daily wearer.

Condition: Preowned
Case size: 39mm
Bracelet condition: Light wear

Posted at

Nov 26, 2025, 4:47 PM

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Omega Speedmaster "Reduced" Automatic – Good Condition

Omega - 3510.50.00 · $2,200

This Omega Speedmaster Automatic 'Reduced' is a pre-owned watch with a black tachymeter bezel and stainless steel case. It features an automatic chronograph movement, hours, minutes, small seconds, and chronograph functions.

Condition: Good pre-owned condition
Case Diameter: 38.5-39 mm
Lug To Lug: ~45 mm
Thickness: ~12 mm

Posted at

Nov 26, 2025, 4:15 PM

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