Omega Speedmaster Speedmaster Professional Moonwatch 321 Platinum / Black / Alligator

Reference 311.93.42.30.99.001

About this watch

The Omega Speedmaster Professional Moonwatch 321 Platinum is a stunning tribute to the brand's rich legacy of space exploration. With its platinum case, chronograph movement, and luxurious materials, this watch demands attention without being overly ostentatious. The black onyx dial adds depth, while the stick and dot indexes stand out beautifully. At the core is the Omega caliber 321 B, a hand-wound marvel that pays homage to original Speedmaster movements. With a power reserve of 55 hours and a frequency of 18,000 vibrations per hour, it ensures precision and reliability. The chronograph feature operates through pushers on the side of the watch, engaging the timing mechanism. This timepiece is a celebration of engineering, design, and the spirit of exploration. Its timeless elegance and advanced functionality make it a worthy addition to any watch collection.
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Key Features

  • Platinum case with 42mm diameter
  • Omega caliber 321 B hand-wound movement
  • Chronograph feature with column wheel mechanism
  • Water resistance up to 50 meters
  • Black onyx dial with stick and dot indexes
  • Alligator leather strap for comfort and style

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 321 Platinum / Black / Alligator
Reference
311.93.42.30.99.001
Movement
321-b
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph, Column wheel
Case
42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
50

Current Listings

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

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

This Omega Speedmaster Chronoscope features a 43mm case size, white panda dial, and includes the original box, user manual, and other accessories.

  • Condition: Fantastic condition with minor hairlines on clasp and bracelet
  • Case Size: 43mm
  • Dial Color: white panda
Posted at
Dec 10, 2025, 8:22 AM
Active
[WTS] Omega Speedmaster Professional Moonwatch 42mm FULL SET! Ref. 310.30.42.50.01.001 — $5,500

Omega Speedmaster Professional Moonwatch 42mm FULL SET! Ref. 310.30.42.50.01.001 — $5,500

This Omega Speedmaster Professional Moonwatch is a 42mm stainless steel watch with a black dial and engraved caseback, featuring a co-axial master chronometer movement with a power reserve of approximately 50 hours. It comes as a full set with original boxes and papers.

  • Condition: Very Good used condition
  • Case size: 42mm diameter
  • Crystal type: Hesalite crystal
Posted at
Dec 9, 2025, 8:45 PM
Active
[WTS] Omega Speedmaster Reduced Automatic GREAT SET w/ Original Papers & Omega Service Paperwork!

Omega Speedmaster Reduced Automatic GREAT SET w/ Original Papers & Omega Service Paperwork!

A classic Omega Speedmaster Reduced in excellent condition, complete with original papers and Omega service history. This watch features a 39mm stainless case, automatic movement serviced by Omega in 2018, and an original Omega bracelet.

  • Condition: Excellent, lightly worn vintage watch with some signs of age
  • Case size: 39mm diameter
  • Bracelet size: adjusts to 6.7-7.1 inches with extra links
  • Movement service history: fully serviced by Omega in 2018
Posted at
Dec 9, 2025, 8:26 PM
Active
[WTS] 2022 Omega Speedmaster Professional Moonwatch Sapphire 310.30.42.50.01.002 Full Set

2022 Omega Speedmaster Professional Moonwatch Sapphire 310.30.42.50.01.002 Full Set

Additional Details: Model: Speedmaster Professional Moonwatch Ref# 310.30.42.50.01.002, a 2 - 3 sentence summary of the watch in the listing is not available as there is no other information about the watch.

  • Condition: Very nice preowned condition with some light scratches on the case, bracelet and buckle
  • Case material: Stainless Steel
  • Case dimensions: 42 mm diameter
  • Bezel material: Stainless Steel
Posted at
Dec 9, 2025, 8:10 PM
Active
[WTS] Omega Speedmaster Automatic Mark 40 175.0084 Triple Calendar watch 1680 USD

Omega Speedmaster Automatic Mark 40 175.0084 Triple Calendar watch 1680 USD

Omega - Mark 40 175.0084 · $1,680
  • Model name: Speedmaster Automatic Triple Calendar
Posted at
Dec 9, 2025, 4:55 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional 3861 Sapphire 310.30.42.50.01.002

Omega Speedmaster Moonwatch Professional 3861 Sapphire 310.30.42.50.01.002

This Omega Speedmaster Moonwatch Professional is a manual wound watch with a 42mm diameter case, featuring the iconic design of one of Omega's most celebrated watches.

  • Condition: Excellent pre-owned
  • Size: 42mm diameter
  • Movement: Manual Wound
Posted at
Dec 9, 2025, 12:20 PM
Active
[WTS] 1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

Omega - 3590.50.00 · $4,099
A 1991 Omega Speedmaster Moonwatch in excellent condition, with a tritium dial and original hands. The watch is powered by caliber 861 movement.

  • Condition: Excellent vintage condition
  • Movement: Caliber 861
  • Serial number: 482774XX
  • Bracelet size: 1479/812, fits 6.8" wrist, expands to fit 7.5" or larger
Posted at
Dec 8, 2025, 5:34 PM
Active
[WTS][US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

[US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

Omega - 3551.20.00 · $4,225
This Omega Speedmaster Broad Arrow is a 42mm watch in excellent mechanical condition, featuring a white dial.

  • Condition: Fantastic condition with minor hairlines
  • Case size: 42mm diameter
Posted at
Dec 8, 2025, 2:21 PM
Active
[WTS] Omega Speedmaster Professional Hesalite - ref 310.30.42.50.01.001 - $5500 + label

Omega Speedmaster Professional Hesalite - ref 310.30.42.50.01.001 - $5500 + label

Omega Speedmaster Professional Hesalite with ref number 310.30.42.50.01.001 for sale.

  • Case size: 41mm
Posted at
Dec 8, 2025, 2:02 PM
Active