Omega Speedmaster Speedmaster Professional Moonwatch Alaska Project III

Reference ST 145.0022 Alaska III

About this watch

The Omega ST 145.0022 Alaska III Speedmaster Professional Moonwatch is a masterpiece that combines functionality, style, and rich heritage. This limited-edition timepiece is steeped in history and craftsmanship, born out of the Alaska Project—a NASA initiative to develop a watch that could withstand extreme conditions. With only 56 units made, it's as much a collector's item as it is a functional timepiece. The matte black finish is both sleek and understated, allowing it to blend in with casual and formal outfits alike. The round case is classic and timeless, measuring a comfortable 42mm in diameter, making it suitable for various wrist sizes. The tachymeter bezel is a nod to its sporty nature, while the plexiglass adds a vintage touch that many enthusiasts adore. The dial of the Alaska III is where things get interesting, with stick and dot indexes giving it a clean, streamlined look. This watch is perfect for those who appreciate a classic design without the frills. The Omega caliber 861 movement is not just reliable; it's a piece of history, used in the second generation of 'moon watches.' It features 18 jewels, providing a power reserve of about 48 hours and a chronograph function that allows you to measure elapsed time—a handy feature for sports lovers and adventurers. Built to withstand the rigors of space travel, the Omega Alaska III is no slouch when it comes to durability, with a water resistance of 50 meters. The stainless steel case adds to the watch's aesthetic appeal and contributes to its robustness. Owning one is like possessing a fragment of that exciting era. It's great for both casual outings and formal events, making it a versatile addition to any wardrobe.
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Key Features

  • Omega caliber 861 movement
  • Limited edition with only 56 units produced
  • Rich history tied to space exploration
  • Classic, timeless design
  • Robust and durable materials
  • Functional chronograph feature
  • Plexiglass may scratch easier than sapphire crystal

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch Alaska Project III
Reference
ST 145.0022 Alaska III
Movement
861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Plexi
Water Resistance
50

Current Listings

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This Omega Speedmaster Professional is a 'Sapphire Sandwich' model with a 42mm case, known as the Moonwatch.

  • Condition: Like New
  • Case size: 42mm
  • Service history: Unknown
Posted at
Jan 18, 2026, 6:07 PM
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  • Material: genuine OEM
  • Status: sealed and unopened
  • Origin: received directly from Omega
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Jan 18, 2026, 5:12 PM
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[WTS] Omega Speedmaster Broadarrow. $3450 only !!

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  • Shipping Location: NJ USA
  • Shipping Method: Fedex with insurance
  • Shipping Global: yes, globally accepted
Posted at
Jan 18, 2026, 3:43 PM
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[WTS] 2025 OMEGA Speedmaster Moonwatch Pro White 310.30.42.50.04.001 Full Set

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  • Condition: Very good condition, with a mark on the side of the case
  • Msrp: $9,100 + Tax
  • Shipping: Fully insured overnight via FedEx to the closest FedEx Office
Posted at
Jan 18, 2026, 3:12 PM
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  • Condition: Excellent, lightly worn
  • Case Size: 40.85 mm diameter
  • Bracelet Material: Steel
  • Crystal: Sapphire
Posted at
Jan 18, 2026, 3:11 PM
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[WTS] Omega Speedmaster Professional Sapphire Sandwich $6680 2025

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  • Price: $6680
Posted at
Jan 18, 2026, 12:42 PM
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[WTS] Omega Speedmaster Professional Sapphire Sandwich 2025 $6680

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a rare Omega Speedmaster Professional with a sapphire sandwich case and a 2025 model number.

  • Year of production: 2025
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Jan 18, 2026, 12:34 PM
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[WTS] Omega Speedmaster 39mm olympic 3516.20

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This is a beautiful Omega Speedmaster limited Olympic edition, with minimal signs of wear and coming with an Omega red travel case.

  • Condition: very good condition with minimal sign of wear
  • Case size: 39mm
  • Movement accuracy: -+4/day
  • Included accessories: omega red travel case
Posted at
Jan 17, 2026, 7:29 PM
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[WTS] Omega Speedmaster 3861 Bracelet

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  • Condition: New, never worn
  • Links included: true
  • Clasp condition: plastic still on
  • Adjustment method: tool free microadjust
Posted at
Jan 17, 2026, 4:39 PM
Active