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 Professional - White Dial

Omega Speedmaster Professional - White Dial

Omega - 310.30.42.50.04.001 $7,900
2024 Omega Speedmaster Professional White Dial with box and papers, featuring a steel case, steel bracelet, and various accessories.

  • Condition: Mint condition with a few minor hairline marks on the clasp
  • Bracelet material: Steel
  • Case material: Steel
  • Year: 2024
Posted at
Mar 22, 2026, 6:41 PM
Active
[WTS] BNIB Omega Speedmaster Professional 310.30.42.50.01.001 $6,899

BNIB Omega Speedmaster Professional 310.30.42.50.01.001 $6,899

Omega - 310.30.42.50.01.001 $6,899
The Omega Speedmaster Moonwatch Professional features a robust and elegant 42mm stainless steel case with a hesalite front and solid case back powered by the updated caliber 3861 movement.

  • Condition: Brand new in box (BNIB)
  • Case size: 42mm diameter
  • Case thickness: 13.2mm
  • Lug width: 20mm
Posted at
Mar 22, 2026, 6:39 PM
Active
[WTS] Omega Speedmaster Professional White Dial - $7200

Omega Speedmaster Professional White Dial - $7200

The Omega Speedmaster Professional features a beautiful white lacquered dial with red lettering and is powered by the 3861 movement.

  • Condition: 8.5/10
  • Movement: 3861
  • Crystal: sapphire
Posted at
Mar 22, 2026, 3:37 PM
Active
[WTS] Omega Speedmaster. 39mm. Mother of Pearl Dial. Clean. OEM Strap/Deployant Clasp..

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

Omega - Speedmaster $2,200
A 39mm Omega Speedmaster with a Mother of Pearl dial is being sold in excellent condition.

  • Condition: Clean
  • Case size: 39mm
  • Strap type: OEM Strap/Deployant Clasp
Posted at
Mar 22, 2026, 12:00 PM
Active
[WTS] Omega Speedmaster Sapphire 42mm 馃敟Preowned 2023, $6200+鉁堬笍馃敟

Omega Speedmaster Sapphire 42mm 馃敟Preowned 2023, $6200+鉁堬笍馃敟

Omega - 310.30.42.50.01.002 $6,200
This Omega Speedmaster Sapphire is a 2023 model, available in 42mm size.

  • Condition: Preowned
  • Shipping: Global shipping available, $85 fee for US States
  • Payment: Wire or credit card accepted (+4.9% surcharge)
  • Warranty: 2023 warranty card included
Posted at
Mar 22, 2026, 8:23 AM
Active
[WTS] 2023 Omega Speedmaster Moonwatch Professional Moonwatch Hesalite 310.30.42.50.01.001 Full Set + Extras

2023 Omega Speedmaster Moonwatch Professional Moonwatch Hesalite 310.30.42.50.01.001 Full Set + Extras

Omega - 310.30.42.50.01.001 $6,499
A 2023 Omega Speedmaster Moonwatch Professional Moonwatch Hesalite, featuring a great kit with $1000 worth of extras.

  • Condition: good preowned condition
  • Extras: $1000 worth of extra items including a black rubber strap with deployant clasp and a black fabric strap
  • Case Condition: some lights marks on the hesalite seen in certain lighting and some normal wear on the case
Posted at
Mar 22, 2026, 6:34 AM
Active
[WTS] Omega Speedmaster Professional Moonwatch Hesalite 311.30.42.30.01.005

Omega Speedmaster Professional Moonwatch Hesalite 311.30.42.30.01.005

Omega - 311.30.42.30.01.005 $4,399
This is an Omega Speedmaster Professional Moonwatch with a Hesalite crystal and 42mm case size. It comes with box, papers, straps, and accessories.

  • Crystal: Hesalite
  • Bracelet length: 7.5 inches
Posted at
Mar 21, 2026, 7:29 PM
Active
[WTS] OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 馃敟$10,000馃敟

OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 馃敟$10,000馃敟

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, featuring a black ceramic case and a skeletonized dial with laser-ablated lunar surface details.

  • Condition: UNWORN
  • Case material: black ceramic
  • Diameter: 44.25mm
Posted at
Mar 21, 2026, 7:12 PM
Active
[WTS] Omega Speedmaster 3210.50 Black Dial $2,099

Omega Speedmaster 3210.50 Black Dial $2,099

Omega - 3210.50 $2,099
The Omega Speedmaster Date is a 40mm stainless steel automatic chronograph with a black dial and tachymeter bezel, featuring a sporty, classic look.

  • Condition: good pre-owned condition
  • Case Size: 40mm diameter
  • Lug To Lug: 45mm
  • Lug Width: 19mm
Posted at
Mar 21, 2026, 4:44 PM
Active