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

Reference 310.32.42.50.01.002

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] Omega Speedmaster Moonwatch Professional Sapphire Sandwich 310.30.42.50.01.002

Omega Speedmaster Moonwatch Professional Sapphire Sandwich 310.30.42.50.01.002

This is a mint Omega Speedmaster Moonwatch Professional Sapphire Sandwich with additional accessories including box, warranty cards, outer box, and links.

  • Condition: mint
  • Box: yes
  • Warranty card: 3 cards
  • Outer box: yes
Posted at
Dec 23, 2025, 5:40 PM
Active
[WTS] Omega Speedmaster. Moonwatch. Sapphire Sandwich. **Mitsukoshi Dial - 300 Limited Edition**

Omega Speedmaster. Moonwatch. Sapphire Sandwich. **Mitsukoshi Dial - 300 Limited Edition**

This is a limited edition Omega Speedmaster Moonwatch featuring a Mitsukoshi dial, one of only 300 produced. It includes a full kit and comes with both the modified and original dials.

  • Dial material: Mitsukoshi Dial (limited edition)
  • Additional dials included: OEM Black Speedy Dial
  • Case size: 40mm diameter
Posted at
Dec 23, 2025, 2:08 PM
Active
[WTS] Omega Speedmaster Professional Rubber Strap + Clasp

Omega Speedmaster Professional Rubber Strap + Clasp

Omega · $499
Additional Details: Like new, pristine. For the Moonwatch works on older Moonwatch models as well.

  • Condition: like new
  • Lug Width: 20mm
  • Clasp Width: 16mm
Posted at
Dec 23, 2025, 12:15 PM
Active
[WTS] Omega Speedmaster Saphire full set 2021

Omega Speedmaster Saphire full set 2021

The Omega Speedmaster Professional 'Saphire Sandwich' Edition features the 3861 Movement, and comes with its original box, papers, and warranty card.

  • Condition: Excellent
  • Movement: 3861
Posted at
Dec 23, 2025, 11:06 AM
Active
[WTS] Omega Speedmaster 3520.53 Box & Card - $2,900

Omega Speedmaster 3520.53 Box & Card - $2,900

Omega - 3520.53 · $2,900
A 39mm Omega Speedmaster 3520.53 in great condition, featuring an automatic movement and a steel case on an original Omega Steel bracelet.

  • Condition: 8.8/10 great condition with some usage marks and micro scratches on the blue AR coating
  • Case size: 39mm diameter
  • Movement type: automatic
  • Bracelet length: fits up to 7 inch wrists
Posted at
Dec 22, 2025, 9:30 PM
Active
[WTS] Omega Speedmaster Dark Side of the Moon

Omega Speedmaster Dark Side of the Moon

A modern all ceramic Omega Speedmaster Dark Side of the Moon, powered by a co-axial movement, available as watch only.

  • Condition: very good
  • Size: 44mm diameter
  • Movement: Co-Axial Automatic
Posted at
Dec 22, 2025, 8:36 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional Sapphire 310.30.42.50.01.002 – Full Set – $6,400 Shipped

Omega Speedmaster Moonwatch Professional Sapphire 310.30.42.50.01.002 – Full Set – $6,400 Shipped

A 2022 Omega Speedmaster Moonwatch Professional Sapphire, featuring a sapphire crystal and display caseback, with a manual-wind chronograph movement.

  • Condition: Great
  • Case size: 42mm diameter
  • Movement: Manual-wind chronograph (Omega Caliber 3861)
  • Crystal: Sapphire
Posted at
Dec 22, 2025, 7:27 PM
Active
[WTS] Omega Speedmaster 3590.50

Omega Speedmaster 3590.50

A summary of the watch in the listing is not provided.

Posted at
Dec 22, 2025, 4:21 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega - 145.022-69 · $5,425
  • Condition: serviced, professionally serviced in November 2022
  • Case size: 42mm
  • Movement: 861 caliber
  • Bracelet size: up to 7.5” (19cm)
Posted at
Dec 22, 2025, 4:08 PM
Active