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

Omega Speedmaster Reduced White Dial Automatic 3510.2000

Omega Speedmaster Reduced White Dial Automatic 3510.2000

Omega - 3510.20.00 $3,640.004
A stainless steel Omega Speedmaster Reduced White Dial Automatic watch, with a mechanical automatic movement and chronograph function.

  • Condition: 90%
  • Case size: 38mm
  • Movement type: Mechanical Automatic
Posted at
May 3, 2025, 2:25 PM
Active
[WTS] Omega Speedmaster Aventurine Moonphase Date | Fresh Service by Omega w/New OEM integrated strap & clasp

Omega Speedmaster Aventurine Moonphase Date | Fresh Service by Omega w/New OEM integrated strap & clasp

Omega - 311.33.44.32.01.001 $9,650
A beautiful Omega Speedmaster Aventurine Moonphase Date watch that features a stunning aventurine dial, moonphase display, and date function.

  • Condition: Like new, serviced by Omega
  • Case material: oak color
  • Case size: not specified
  • Dial material: aventurine
Posted at
May 3, 2025, 1:06 PM
Active
[WTS] Omega Speedmaster Automatic MK40 Day Date Ref 3520.53- Serviced

Omega Speedmaster Automatic MK40 Day Date Ref 3520.53- Serviced

Omega - 3520.53 $2,650
A Omega Speedmaster Automatic MK40 Day Date Ref 3520.53, one of the coolest Speedmaster variants, featured in A Man and His Watch.

  • Condition: Pre-owned, with wear and dings on the bezel, insert, and case
  • Servicing: $875, serviced at a local professional
  • Size: 39mm diameter
  • Power reserve: 44 hour power reserve
Posted at
May 3, 2025, 12:28 PM
Active
[WTS] Omega Speedmaster Mark II Ref 327.10.43.50.06.001 - Full Kit 馃敟馃敟$3999馃敟馃敟 Final Price Drop

Omega Speedmaster Mark II Ref 327.10.43.50.06.001 - Full Kit 馃敟馃敟$3999馃敟馃敟 Final Price Drop

Omega - 327.10.43.50.06.001 $3,999
This Omega Speedmaster Mark II is a racing dial model with a stainless steel bracelet, featuring a co-axial column wheel movement and date display. It has a compact size of 42.4mm diameter and 46mm lug to lug, making it wearable on smaller wrists. The watch also features 100m water resistance and a tool-less quick adjust clasp.

  • Condition: Very good condition, minor signs of normal wear
  • Size: 42.4mm diameter
  • Water Resistance: 100m water resistance
  • Movement: Omega 3330 co-axial column wheel movement
Posted at
May 3, 2025, 11:15 AM
Active
[WTS] OMEGA SPEEDMASTER RALLY DEPLOYANT STRAP + DEPLOYANT

OMEGA SPEEDMASTER RALLY DEPLOYANT STRAP + DEPLOYANT

Omega - 98000024 $449
This Omega Speedmaster Professional Rally Leather strap features a deployant clasp and has a lug end of 20mm that tapers to 18mm at the clasp end.

  • Strap Width At Lug End: 20mm
  • Strap Width At Clasp End: 18mm
Posted at
May 3, 2025, 1:20 AM
Active
[WTS] Omega Speedmaster Blue Side of the Moon 304.93.44.52.03.001

Omega Speedmaster Blue Side of the Moon 304.93.44.52.03.001

Omega - 304.93.44.52.03.001 $8,250
This Omega Speedmaster Blue Side of the Moon is in excellent condition, with no significant wear on the case and all chrono features working properly.

  • Condition: Superb shape with small nick on the back lug and signs of wear on the strap
  • Water resistance: 50m
  • Case condition: Superb shape
  • Strap condition: Signs of wear
Posted at
May 2, 2025, 6:43 PM
Active
Omega Speedmaster Racing Chronograph - Box & Papers

Omega Speedmaster Racing Chronograph - Box & Papers

Omega - 32930445101002 $5,900.006
This Omega Speedmaster Racing Chronograph features a 44mm stainless steel case with a racing-inspired dial, Co-Axial Master Chronometer movement, and comes complete with box, instruction manual, and guarantee cards.

  • Condition: Mint
  • Case size: 44mm diameter
  • Bracelet material: steel
  • Movement: Omega Co-Axial Master Chronometer 9900
Posted at
May 2, 2025, 5:49 PM
Active
[WTS] Omega Speedmaster 3539.50 Reduced v2.0 Sapphire $2,990

Omega Speedmaster 3539.50 Reduced v2.0 Sapphire $2,990

Omega - 3539.50 $2,990
This Omega Speedmaster Reduced features a cleaner dial, sapphire crystal, and improved 100m water resistance. It comes with auction house/jeweler authentication card and includes the watch, bracelet with all links, Stoll & Co Jewelers/eBay Authentication Card, all links, blue felt travel case.

  • Condition: Good Condition
  • Water Resistance: 100m
  • Material: Sapphire Crystal
Posted at
May 2, 2025, 3:18 PM
Active
[WTS][US] Omega Speedmaster Chronoscope - White Panda Dial - 43mm - 329.30.43.51.02.002 - Full Set

[US] Omega Speedmaster Chronoscope - White Panda Dial - 43mm - 329.30.43.51.02.002 - Full Set

Omega - 329.30.43.51.02.002 $6,500
Up for sale is an Omega Speedmaster Chronoscope - White Panda Dial - 43mm watch that functions perfectly mechanically.

  • Condition: Fantastic with minor hairlines
  • Case Size: 43mm
  • Dial Color: white panda
Posted at
May 2, 2025, 2:45 PM
Active