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

2014 Omega Speedmaster Ref. 326.30.40.50.01.001 with Box & Papers
The Omega Speedmaster Ref. 326.30.40.50.01.001 features a classic 40mm stainless steel case powered by the Co-Axial Calibre 3330, with a sporty black dial and black sub dials for an automotive-inspired look.
- Condition: Excellent (very little to no signs of wear)
- Case size: 40mm
- Movement type: Automatic
- Depth rating: unknown (no depth rating mentioned)

2023 Omega Speedmaster Moonwatch Pro 42mm Yellow Gold Green Dial
This is a 2023 Omega Speedmaster Moonwatch Pro in yellow gold with a green dial, featuring a 42mm case size and Master Chronometer certification.
- Condition: Excellent
- Warranty Years: 5
- Case Size: 42mm
Omega Speedmaster Moonphase 42mm 3575.20 (2001 Box and Papers)
A pre-owned Omega Speedmaster Moonphase with a 42mm case size, featuring a moon phase display. The watch is in great condition, but shows some signs of wear.
- Condition: Pre-owned, slight wear on bracelet and clasp, marks on bezel
- Case Size: 42mm
- Bracelet Links: 16.5 links
- Service History: Unknown ( -5 s/d, 230+ AMP)
Omega Speedmaster Hesalite 42mm 3572.50 (Watch and Card)
A 42mm Omega Speedmaster Hesalite is being listed in great pre-owned condition, featuring a micro-scratched hesalite crystal and some nicks by the tachymeter. The watch includes 15.5 links and a warranty card.
- Condition: Pre-owned, with minor scratches and nicks on the hesalite crystal
- Service history: Unknown
- Water resistance: +13 s/d (not specified)
- Movement amp hours: >280

2024 Omega Speedmaster Moonwatch Hesalite 42mm 31.30.42.50.01.001 BOXES/PAPERS!
This 2024 Omega Speedmaster Moonwatch comes in a 42mm stainless steel case with a black dial and fixed stainless steel bezel. It features automatic movement, sapphire crystal, and water resistance up to 100 meters.
- Condition: Pre-owned with typical cosmetic wear
- Case diameter: 42mm
- Band material: Stainless Steel
- Water resistance depth rating: 100m

Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( new )
This is a brand new Omega Speedmaster Moonwatch Professional with a white dial and sapphire crystal on a stainless steel bracelet.
- Condition: Brand new
- Movement: Omega Master Chronometer Movement
- Case size: 42mm
- Material: Stainless Steel

Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)
This is a brand new Omega Speedmaster Moonwatch Professional, featuring a 42mm stainless steel case and an Omega Master Chronometer movement.
- Condition: Brand new
- Case material: stainless steel
- Movement type: Omega Master Chronometer

2023 Omega Speedmaster Pro Moonwatch 42mm 310.30.42.50.01.002 Steel Black Dial
This is a 2023 Omega Speedmaster Professional Moonwatch with a stainless steel case and black dial, measuring 8.0inch in diameter on the wrist.
- Condition: Excellent
- Material: Stainless Steel
- Size: 40mm diameter
- Warranty: International Warranty card dated 2023 and Existing Factory warranty

Omega Speedmaster. First Omega In Space. New model! 2024yr! 310.30.40.50.06.001
This Omega Speedmaster First Omega In Space is an updated tribute to the pioneering timepiece worn in space on October 3rd, 1962, and captures the same 2nd generation Speedmaster style in modern form.
- Condition: Like New
- Movement type: Manual-Winding
- Dial color: Blue-Grey
- Bezel material: Aluminum