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 Professional Hesalite I 310.30.42.50.01.001 | Dated 03/2023 | $5,399

Omega - 310.30.42.50.01.001 · $5,399

This Omega Speedmaster Professional Hesalite I is a manual wind, mechanical watch with a stainless steel case and black dial, featuring hesalite crystal.

Condition: Preowned, Very Good Condition
Case Material: Stainless Steel
Band Material: Stainless Steel
Movement Type: Manual Wind, Mechanical

Posted at

Mar 15, 2026, 3:45 PM

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Omega Speedmaster Japan Edition 3211.50.00

Omega - 3211.50.00 · $2,599

This Omega Speedmaster Japan Edition is in great pre-owned condition with limited signs of wear throughout.

Condition: pre-owned with limited signs of wear
Case Size: 40mm diameter

Posted at

Mar 15, 2026, 1:58 PM

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Omega Speedmaster GSOTM Meterorite, Full Set w/ Extra Strap

Omega - 311.63.44.51.99.001 · $12,000

A mint condition Omega Speedmaster Grey Side of the Moon Meteorite, a limited edition timepiece featuring a solid Sedna gold bezel and ceramic case, available with an original gray alligator leather strap as well as an additional brand new black alligator leather strap.

Condition: Excellent
Case size: 44.25mm
Movement: Automatic
Case material: Ceramic

Posted at

Mar 15, 2026, 1:18 PM

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Omega Speedmaster Date 40 Box Papers Excellent Condition Blue Dial

Omega - 3212.80.00 · $3,198

The Omega Speedmaster Date Chronograph is one of OMEGA's most iconic timepieces, featuring a date window and iconic Seamster logo on the caseback.

Condition: Excellent Condition
Case Material: Steel
Bracelet Material: Bracelet
Box Papers: Yes

Posted at

Mar 15, 2026, 1:14 PM

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Omega Speedmaster Silver 40 Box Papers

Omega - 3212.80.00 · $2,999

The Omega Speedmaster is a chronograph date watch with small seconds and tachymeter, featuring an iconic design.

Condition: Pre-Owned with minor scratches
Case Material: Steel
Bracelet Material: Bracelet
Dimensions: 40 mm diameter

Posted at

Mar 15, 2026, 1:05 PM

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Omega Speedmaster. 39mm. Mother of Pearl Dial. Clean. OEM Strap/Deployant Clasp..

Omega - Speedmaster · $2,350

This Omega Speedmaster features a 39mm case and mother of pearl dial.

Condition: Clean
Case Size: 39mm
Strap Type: OEM Strap/Deployant Clasp

Posted at

Mar 15, 2026, 11:32 AM

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2022 Omega Speedmaster Moonwatch Professional – 310.30.42.50.01.001 - $5899 Shipped

Omega - 310.30.42.50.01.001 · $5,899

For sale is a 2022 Omega Speedmaster Moonwatch Professional in excellent condition, showing light signs of normal wear and running properly.

Condition: Excellent overall condition with light signs of normal wear only
Case size: 42mm
Movement type: Manual wind chronograph
Crystal material: Hesalite

Posted at

Mar 15, 2026, 2:41 AM

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Omega Speedmaster Reduced 39mm Ref. 175.0032 Cal 1140 TRITIUM PATINA

Omega - 175.0032 · $2,550

This Omega Speedmaster Reduced features a beautiful tritium patina on its dial, giving it an authentic vintage character.

Condition: Honest signs of use consistent with its age, scratches on case and bracelet
Movement: Omega Caliber 1140 Automatic (46 jewels)
Case Size: 39mm
Caseback: Solid Omega press on caseback

Posted at

Mar 15, 2026, 1:38 AM

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Omega Speedmaster Professional Moonwatch ref. 145.022 circa 1978

Omega - 145.022 · $4,400

A circa 1978 Omega Speedmaster Professional Moonwatch ref. 145.022, featuring a Lemania based caliber 861 movement, in a classic 42mm case.

Condition: Used, with wear and signs of polish
Movement: Lemania based caliber 861
Case size: 42mm diameter
Lug width: 20mm

Posted at

Mar 14, 2026, 8:50 PM

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