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 Professional Moonwatch

Omega - 310.30.42.50.04.001 · $7,750

A 2025 Omega Speedmaster Professional Moonwatch with a white dial, recently purchased from an Omega boutique and barely worn.

Condition: Practically new, worn twice
Case material: Sapphire
Band included: Yes, bracelet and rubber strap (20mm)
Lug tool mark: Faint, requires magnification to see

Posted at

Nov 29, 2025, 12:48 PM

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[WTS] Omega Speedmaster Professional Moonwatch Sapphire 310.30.42.50.01.002 – Newest Adjustable Buckle – Watch Only – Great Condition – 6,000 Shipped – Trades Welcome

Omega Speedmaster Professional Moonwatch Sapphire 310.30.42.50.01.002 – Newest Adjustable Buckle – Watch Only – Great Condition – 6,000 Shipped – Trades Welcome

Omega - 310.30.42.50.01.002 · $6,000

This Omega Speedmaster Professional Moonwatch features a manual-wind Caliber 3861 Master Chronometer movement and is elevated by a sapphire front and exhibition caseback.

Condition: Great condition
Case size: 42mm
Movement: Caliber 3861 manual-wind Master Chronometer movement
Water resistance: Not specified

Posted at

Nov 29, 2025, 12:18 PM

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Omega Speedmaster X-33 Gen 1

Omega - X-33 Gen 1 · $1,800

A post-Omega-service Speedmaster X-33 Gen 1, featuring a Gen 2 crown and a new movement. The watch includes its original titanium bracelet, extra links, and the original crown/parts.

Condition: Pre-owned with service records
Bracelet material: titanium
Case condition: post-Omega service
Service year: 2020

Posted at

Nov 29, 2025, 10:56 AM

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Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Omega - 311.92.44.30.01.001 · $7,850

This listing is for an Omega Speedmaster Dark Side of the Moon with a full-ceramic case and buckle, featuring a mint condition. The watch comes with its box and papers.

Condition: Mint, like-new condition
Case material: full ceramic
Year: 2019

Posted at

Nov 28, 2025, 6:47 PM

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[WTS] Omega Speedmaster 3861 Sapphire Sandwich - PRISTINE OPEN BOX CONDITION - August 2025 U.S. AD warranty card - Full Kit with Booklets, Cards, Coffin - Only $6900 shipped CONUS (MSRP $9000)

Omega Speedmaster 3861 Sapphire Sandwich - PRISTINE OPEN BOX CONDITION - August 2025 U.S. AD warranty card - Full Kit with Booklets, Cards, Coffin - Only $6900 shipped CONUS (MSRP $9000)

Omega - 3861 · $6,900

For sale is my Omega Speedmaster 3861 Sapphire Sandwich, a full kit with warranty card, booklets, cards, and coffin. It's absolutely pristine and includes everything you'd expect from an Omega purchase.

Condition: Pristine, open box condition
Warranty Card Date: August 2025
Warranty Status: Full, U.S. authorized dealer

Posted at

Nov 28, 2025, 12:25 PM

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Omega Speedmaster “The 1957 Trilogy” 60th Anniversary Limited Edition 311.10.39.30.01.001 - With accessories - Repost

Omega - 311.10.39.30.01.001 · $6,949

The Omega Speedmaster 'The 1957 Trilogy' is a limited edition watch celebrating its 60th anniversary.

Condition: Excellent - Pre-owned
Accessories: Booklets, straps, strap changer, travel case, tag Double box Undated card

Posted at

Nov 28, 2025, 12:18 PM

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Omega Speedmaster. Triple Date. Clean. Runs strong. 39mm.

Omega - Speedmaster Triple Date · $1,825

The Omega Speedmaster is a 39mm triple date chronograph watch with an automatic movement. It's overall clean and runs very strong, making it a great addition to any collection.

Condition: Clean, runs strong
Diameter: 39mm
Movement: Automatic

Posted at

Nov 28, 2025, 9:45 AM

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