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.
Buy Now on Jomashop
This is an affiliate link

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 Moonwatch Sapphire Sandwich 1863 on Latest OEM Omega 3861 Bracelet with Quick Adjust Clasp + OEM Omega 3861 Moonwatch Box Set + Spiralwinder DON Ceramic Bezel - CLEAN, only $5400 shipped CONUS for everything

Omega Speedmaster Moonwatch Sapphire Sandwich 1863 on Latest OEM Omega 3861 Bracelet with Quick Adjust Clasp + OEM Omega 3861 Moonwatch Box Set + Spiralwinder DON Ceramic Bezel - CLEAN, only $5400 shipped CONUS for everything

Omega - 1863 · $5,400
This Omega Speedmaster Moonwatch Sapphire Sandwich is in fantastic condition and features a fully lumed ceramic bezel. It comes with an OEM Omega 3861 bracelet and box set.

  • Condition: Fantastic condition, some minor scratches on polished bits of case
  • Bracelet type: OEM Omega 3861
  • Bezel type: Fully lumed ceramic bezel, spiralwinder DON
  • Original bezel included: yes
Posted at
Jan 29, 2026, 7:03 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🤎

Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🤎

Omega - 145.022-69 · $14,995
A very rare and fully original Omega Speedmaster Moonwatch from 1969 in stunning condition, featuring a tropical brown dial with heavy yellow patina.

  • Diameter: 42mm
  • Year: 1969
Posted at
Jan 29, 2026, 5:04 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch 31130423001005 $4500 NYC

Omega Speedmaster Professional Moonwatch 31130423001005 $4500 NYC

Omega - 31130423001005 · $4,500
This Omega Speedmaster Professional Moonwatch is a full set that has been worn weekly. It runs as it should.

  • Condition: Gently used, minor marks on crystal and bracelet
  • Payment methods: PayPal, meetups in NYC
Posted at
Jan 29, 2026, 4:42 PM
Active
[WTS] Omega Speedmaster Automatic Schumacher Ref. 3810.61.41 - $2950

Omega Speedmaster Automatic Schumacher Ref. 3810.61.41 - $2950

Omega - 3810.61.41 · $2,950
This Omega Speedmaster Automatic Schumacher features a sleek design and is accompanied by a new aftermarket strap.

  • Condition: Pre-owned with minor scratches on the bracelet
  • Bracelet condition: minor hairline scratches consistent with wear
  • Straps included: 1 new aftermarket strap, 1 original bracelet
  • Shipping: $2950 includes Fedex overnight shipping within the US
Posted at
Jan 29, 2026, 12:00 PM
Active
[WTS] Omega Speedmaster Racing 326.30.40.50.02.001

Omega Speedmaster Racing 326.30.40.50.02.001

This is the Omega Speedmaster Racing with a silver dial, featuring a 40mm automatic chronograph and co-axial movement. It's a sporty watch that's also very wearable.

  • Condition: excellent preowned condition
  • Case size: 40mm diameter
  • Movement: co-axial movement
Posted at
Jan 29, 2026, 11:48 AM
Active
[WTS] Omega Speedmaster  moonwatch professional

Omega Speedmaster moonwatch professional

This is a 2023 Omega Speedmaster Professional Moonwatch featuring a 42mm stainless steel case, manual-winding Co-Axial Master Chronometer Calibre 3861, and a Sapphire Crystal.

  • Condition: Excellent
  • Case size: 42 mm
  • Material: stainless steel
  • Movement type: manual winding
Posted at
Jan 29, 2026, 7:38 AM
Active
[WTS] Omega Speedmaster Professional Moonwatch – Sapphire Sandwich – Full Set

Omega Speedmaster Professional Moonwatch – Sapphire Sandwich – Full Set

The Omega Speedmaster Professional Moonwatch, reference 310.30.42.50.01.002, is a modern take on the classic design featuring a sapphire crystal and caseback.

  • Condition: Excellent with minor signs of wear
  • Movement: Manual-wind Cal. 3861 (METAS Master Chronometer)
  • Case size: 42mm
  • Water resistance: 50m
Posted at
Jan 28, 2026, 9:31 PM
Active
[WTS] Omega Speedmaster Reduced 39mm Serviced ⏱

Omega Speedmaster Reduced 39mm Serviced ⏱

  • Condition: Pre-owned, serviced
  • Case Size: 39mm diameter
  • Lug To Lug: 45mm length
  • Lug Width: 18mm width
Posted at
Jan 28, 2026, 9:30 PM
Active