Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Calf

Reference 310.32.42.50.01.002

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Calf

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is an engineering marvel that combines style with functionality, paying homage to its illustrious past as the first watch worn on the moon. This iconic timepiece boasts a sleek, matte black dial and polished stainless steel case, striking an excellent balance between boldness and subtlety. At its heart lies the Omega caliber 3861, an updated version of the legendary caliber 861/1861, featuring a Co-Axial escapement and silicon balance spring for accuracy and resistance to magnetic fields up to 15,000 gauss. The watch's robust stainless steel construction and sapphire crystal provide a durable exterior and protect the watch face from scratches, while its water resistance of 50 meters ensures it can withstand accidental splashes. With an open case back revealing the intricate movement within, this timepiece showcases Omega's craftsmanship and attention to detail. The Speedmaster is a versatile accessory that adapts effortlessly to any style or occasion, making it a worthy investment for anyone who appreciates the finer things in life.
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MSRP: $7,600
Market Price: $5,422

Key Features

  • Manual-winding chronograph movement
  • Master Chronometer Certified
  • 50-meter water resistance
  • Co-Axial escapement and silicon balance spring
  • Open case back revealing intricate movement
  • Robust stainless steel construction with sapphire crystal

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Calf
Reference
310.32.42.50.01.002
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
50

Current Listings

[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 · $4,175
Up for sale is an Omega Speedmaster Broad Arrow - White Dial - 42mm - Full Set, which functions perfectly mechanically.

  • Condition: Fantastic condition with minor hairlines
  • Case Size: 42mm
  • Box And Papers: true
Posted at
Dec 29, 2025, 7:27 AM
Active
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[WTS] Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🟤

Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🟤

Omega - 145.022-69 · $15,150
This rare Omega Speedmaster Moonwatch features a period-correct super tropical brown dial, a deep blue bezel, and a professionally serviced movement. The watch has aged attractively and presents even better in person than in photos.

  • Condition: Beautiful condition with thick, sharp lugs and heavy patina on the dial
  • Size: 42mm
  • Year: 1969
  • Material: Tropical dial with heavy yellow patina and tritium that glows green under UV light
Posted at
Dec 29, 2025, 1:40 AM
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[WTS] [USA] Omega Speedmaster Professional 'Sapphire Sandwich' (310.30.42.50.01.002) – 2025 Like-New Complete Set 🚨$6,795🚨

[USA] Omega Speedmaster Professional 'Sapphire Sandwich' (310.30.42.50.01.002) – 2025 Like-New Complete Set 🚨$6,795🚨

Omega - 310.30.42.50.01.002 · $6,795
A timeless icon, the Omega Speedmaster Professional 'Sapphire Sandwich', powered by Calibre 3861, is offered as a complete set with box, warranty cards, serial tag, and art manual. Originally dated August 2025, it remains covered under Omega's 5-year factory warranty.

  • Condition: Mint, like-new
  • Movement: Calibre 3861
  • Year: 2025
  • Warranty: 5-year factory warranty through August 2030
Posted at
Dec 28, 2025, 10:27 PM
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[WTS] 1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

Omega - 3590.50 · $4,099
This Omega Speedmaster Moonwatch is a 1991 model with caliber 861 movement and tritium dial and hands. The watch comes with an extract from the Omega archives matching its serial number and a vintage poster.

  • Condition: Excellent vintage condition, unpolished
  • Movement: Caliber 861
  • Serial number: 482774XX
  • Bracelet size: 6.8"
Posted at
Dec 28, 2025, 6:37 PM
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[WTS][US] Omega Speedmaster Moonwatch Professional - 311.30.42.30.01.006 - 42mm - Big Box - Full Set

[US] Omega Speedmaster Moonwatch Professional - 311.30.42.30.01.006 - 42mm - Big Box - Full Set

Omega - 311.30.42.30.01.006 · $4,950
Up for sale is an Omega Speedmaster Moonwatch Professional in 42mm size with a full set of accessories.

  • Condition: Excellent with minor hairlines on bracelet, clasp, and case
  • Case size: 42mm
  • Box condition: Big box in excellent condition (outer slightly damaged)
  • Strap: Nato strap and unworn velcro strap included
Posted at
Dec 28, 2025, 9:46 AM
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[WTS] Omega Speedmaster Pilot Master Chronometer 40.5mm 332.10.41.51.01.002 Automatic

Omega Speedmaster Pilot Master Chronometer 40.5mm 332.10.41.51.01.002 Automatic

Omega - 332.10.41.51.01.002 · $7,600
This Omega Speedmaster Pilot Automatic watch is a recent release that embodies a tool watch with an unique look and feel, inspired by the 1957 original.

  • Condition: excellent plus preowned
  • Case Diameter: 40.8mm
  • Water Resistance Depth: 100m
  • Movement Power Reserve: 60 hrs
Posted at
Dec 27, 2025, 10:42 PM
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[WTS] Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Omega - 311.92.44.30.01.001 · $7,850
This Omega Speedmaster Dark Side of the Moon features a full-ceramic case and buckle.

  • Condition: Mint, like-new
  • Case material: full-ceramic
  • Payment methods: Zelle, Venmo, or Western Union
Posted at
Dec 27, 2025, 8:35 PM
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[WTS] [EU] Omega Speedmaster Olympic games Beijing

[EU] Omega Speedmaster Olympic games Beijing

Omega - 323.10.40.40.04.001 · $1,800
This Omega Speedmaster Olympic games Beijing is an automatic chronograph with a white dial and tachymeter bezel, featuring 50m water resistance. It comes in a stainless steel case size of approx. 39mm.

  • Condition: Good - scratches on bezel, scratches on crystal, dents under bezel, small chip on sapphire crystal
  • Case size: 39mm diameter
  • Movement type: Automatic
  • Complications: Chronograph
Posted at
Dec 27, 2025, 2:00 PM
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[WTS] Omega Speedmaster. 39mm. Sapphire. 3539.50. 🔥

Omega Speedmaster. 39mm. Sapphire. 3539.50. 🔥

Omega - 3539.50 · $3,275
This Omega Speedmaster is a 39mm automatic watch with a sapphire crystal, available for sale.

  • Case size: 39mm diameter
  • Crystal type: sapphire
Posted at
Dec 27, 2025, 10:01 AM
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View listing on r/WatchExchange