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] Omega Speedmaster 145.022-69 Pre-Moon

Omega Speedmaster 145.022-69 Pre-Moon

Omega - 145.022-69 · $5,000
A pre-moon Omega Speedmaster in great shape with a faded bezel and factory crystal.

  • Condition: Pre-owned, some servicing required
  • Case shape: round
  • Dial color: black
  • Bracelet included: yes
Posted at
Feb 8, 2026, 2:43 PM
Active
[WTS] Omega 310.63.42.50.10.001 Gold Speedmaster Moonwatch

Omega 310.63.42.50.10.001 Gold Speedmaster Moonwatch

Omega - 310.63.42.50.10.001 · $18,600
A gold Omega Speedmaster Moonwatch with a beautiful green dial and bezel, and an incredible exhibition caseback.

  • Condition: Excellent near mint condition
  • Case size: 42mm diameter
  • Warranty expiration date: December 26, 2025
Posted at
Feb 8, 2026, 1:42 PM
Active
[WTS] 310.30.42.50.01.002 Omega Sapphire Speedmaster 2025 | Complete Box & Papers | $6,699 shipped

310.30.42.50.01.002 Omega Sapphire Speedmaster 2025 | Complete Box & Papers | $6,699 shipped

This is the current-generation sapphire sandwich reference Omega Speedmaster Professional featuring the classic black dial on a stainless steel bracelet and the updated Caliber 3861 movement. The watch comes complete with original inner and outer boxes, booklet, and warranty card.

  • Condition: Excellent overall condition, with a few light marks on the case and minor hairlines on the bracelet.
  • Case size: 42mm
  • Movement: Manual-wind Caliber 3861 (Master Chronometer)
  • Crystal: Sapphire (front & display caseback)
Posted at
Feb 8, 2026, 1:35 PM
Active
[WTS] 2025 Unworn Omega Speedmaster 38mm Cappuccino Sedna Gold With Factory Diamonds 324.28.38.50.02.002 Just In Time For Valentines! $9,495

2025 Unworn Omega Speedmaster 38mm Cappuccino Sedna Gold With Factory Diamonds 324.28.38.50.02.002 Just In Time For Valentines! $9,495

This listing features a brand new Omega Speedmaster, ideal for Valentine's Day.

  • Condition: Unworn
  • Diameter: 38mm
Posted at
Feb 8, 2026, 10:58 AM
Active
[WTS] Omega Speedmaster Racing Cart

Omega Speedmaster Racing Cart

Omega - 3510.80 · $3,899
This Omega Speedmaster Racing Cart Edition features a 39mm case in excellent condition, including original box, card, authentication papers, and extra links.

  • Condition: Mint
  • Case size: 39mm
Posted at
Feb 7, 2026, 8:16 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega - 145.022-78 · $5,050
This Omega Speedmaster Professional Moonwatch is a well-preserved and reliable example of the Speedmaster Moonwatch, featuring a black tritium dial with even yellow patina across all hour markers.

  • Condition: Very good overall shape, all-original condition
  • Case size: 42mm
  • Year: 1978
  • Movement serviced: February 2026
Posted at
Feb 7, 2026, 5:24 PM
Active
[WTS] Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Up for sale is an Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm watch that functions perfectly mechanically.

  • Condition: Great condition, small chip on edge of case back
  • Case Size: 44mm diameter
  • Case Back Condition: small chip at 9-o'clock
Posted at
Feb 7, 2026, 11:30 AM
Active
[WTS] BNIB 2026 Omega Speedmaster Moonwatch Professional White $7,999

BNIB 2026 Omega Speedmaster Moonwatch Professional White $7,999

The Omega Speedmaster Moonwatch Professional features a glossy white lacquered dial, black markers, and red 'Speedmaster' text. It uses the updated 3861 movement with a sapphire crystal for a more modern look.

  • Condition: Brand new in box with no issues
  • Case size: 42mm
  • Case thickness: 13.2mm
  • Lug width: 20mm
Posted at
Feb 7, 2026, 11:13 AM
Active
[WTS] Omega Speedmaster Date 3210.50.00

Omega Speedmaster Date 3210.50.00

Omega - 3210.50.00 · $2,500
A Omega Speedmaster Date in excellent condition, featuring a 7.5” wrist size and 7 removable links.

  • Condition: Excellent condition
  • Bracelet stretch: no
  • Number of links: 7
  • Links removable: yes
Posted at
Feb 7, 2026, 9:04 AM
Active