Omega Speedmaster Speedmaster Professional Moonwatch SpeedyMoon

Reference ST 345.0809

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
50

Current Listings

[WTS] Omega Speedmaster w/ white gloss lacquer dial [ Ref. 310.30.42.50.04.001 ]

Omega Speedmaster w/ white gloss lacquer dial [ Ref. 310.30.42.50.04.001 ]

Up for sale is this Omega Speedmaster Moonwatch Professional with the white gloss lacquer dial, a full set including the Omega box and warranty card dated 2024.

  • Condition: Great pre-owned condition
  • Material: metal
Posted at
Feb 14, 2026, 1:09 PM
Active
[WTS] Omega Speedmaster Reverse Panda dial [ Ref. 310.30.42.50.01.004 ]

Omega Speedmaster Reverse Panda dial [ Ref. 310.30.42.50.01.004 ]

Omega - 310.30.42.50.01.004 · $10,600
Up for sale is this Omega Speedmaster Moonwatch Professional with the reverse panda dial. It comes as a full set, including the Omega box and other accessories.

  • Condition: Mint condition, worn a handful of times
  • Included Accessories: Omega box, outer box, warranty card, Chronometer card, hangtag, user manual, booklet
  • Location: Carlsbad, CA
Posted at
Feb 14, 2026, 12:28 PM
Active
[WTS] Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Omega Speedmaster Grey Side Of The Moon watch features a grey dial and 44mm case.

  • Condition: Great, with a small chip on the case back
  • Case size: 44mm diameter
  • Materials: Titanium ceramic
Posted at
Feb 14, 2026, 11:59 AM
Active
[WTS] 20mm Omega Speedmaster Bracelet 1499 / 842 – Production (1996–1998)

20mm Omega Speedmaster Bracelet 1499 / 842 – Production (1996–1998)

A 20mm Omega Speedmaster bracelet with 842 end links, known for its high-quality build and taper.

  • Production period: 1996-1998
Posted at
Feb 14, 2026, 4:33 AM
Active
[WTS] OMEGA Speedmaster "Silver Snoopy Award" 50th Bracelet 310.32.42.50.02.001 $14000

OMEGA Speedmaster "Silver Snoopy Award" 50th Bracelet 310.32.42.50.02.001 $14000

OMEGA - 310.32.42.50.02.001 · $14,000
This is a limited-edition Omega Speedmaster 'Silver Snoopy Award' 50th Anniversary Series watch that pays tribute to OMEGA's contributions to space exploration. It features a unique caseback and comes with various accessories.

  • Condition: Very good, with no noticeable markings on the crystal or bezel
  • Case Size: 42mm
  • Bracelet Type: stainless steel
  • Straps Included: nylon strap,stainless bracelet
Posted at
Feb 13, 2026, 6:43 PM
Active
[WTS] Omega Speedmaster DSOTM Dark Side Of The Moon Black Zirconium Ceramic 311.92.44.51.01.003

Omega Speedmaster DSOTM Dark Side Of The Moon Black Zirconium Ceramic 311.92.44.51.01.003

One of the sickest versions of the Speedmaster, with a blacked out design and a dial that still pops out.

  • Condition: Immaculate
  • Straps: 3 (2 OEM, 1 AM strap)
  • Box and papers included: true
Posted at
Feb 13, 2026, 4:59 PM
Active
[WTS] Omega Speedmaster Broad Arrow - White Dial + Blued Hands - 42mm - 321.10.42.50.02.001

Omega Speedmaster Broad Arrow - White Dial + Blued Hands - 42mm - 321.10.42.50.02.001

This Omega Speedmaster Broad Arrow features a white dial and blued hands, housed in a 42mm case.

  • Condition: Fantastic condition with minor hairlines on bracelet, case, and clasp
  • Case size: 42mm
Posted at
Feb 13, 2026, 2:55 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set - BRAND NEW

Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set - BRAND NEW

A brand-new Omega Speedmaster Moonwatch Professional with a white dial is up for sale, featuring a pristine condition and functioning perfectly mechanically.

  • Condition: Brand new, unworn
  • Case materials: Stainless steel
  • Bracelet material: Stainless steel
Posted at
Feb 13, 2026, 2:45 PM
Active
[WTS] Omega Speedmaster Blue moonphase 304.33.44.52.03.001

Omega Speedmaster Blue moonphase 304.33.44.52.03.001

This Omega Speedmaster features a blue dial with moonphase display, and comes with its original box, papers, manual, and strap.

  • Condition: In great shape
  • Water Resistance: 30m
Posted at
Feb 13, 2026, 1:29 PM
Active