Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet

Reference 310.30.42.50.01.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is a masterpiece that combines timeless elegance with modern technology. Founded in 1848, Omega has been a pillar in the world of horology, synonymous with precision and innovation. From its stunning design to its robust functionality, it encapsulates the spirit of adventure and precision that Omega is known for. The Speedmaster line has always been a favorite, and the 3861 model is no exception. With a diameter of 42 mm, the stainless steel case provides both durability and a polished aesthetic. The tachymeter bezel allows for speed calculations over a known distance, making it not just a pretty face but a functional tool. At the heart of the Speedmaster Professional Moonwatch is the Omega Caliber 3861, a hand-wound movement that's a modern upgrade from previous models, incorporating a co-axial escapement and a silicon balance spring. The craftsmanship is evident in the intricate details of the movement, which you can admire through the closed case back.
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MSRP: $7,000
Market Price: $5,141

Key Features

  • Stainless steel case with black matte finish
  • 42 mm diameter for a refined yet statement-making size
  • Plexi glass for added durability and shock resistance
  • Master Chronometer certification by METAS for accuracy and reliability
  • Hand-wound Omega Caliber 3861 movement with co-axial escapement and silicon balance spring
  • Chronograph function with small seconds, hours, and minutes
  • Water resistance of 50 meters for everyday wear

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet
Reference
310.30.42.50.01.001
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Plexi
Water Resistance
50

Current Listings

OMEGA Speedmaster '57 Blue Chronograph Dial Steel Men's Watch 332.10.41.51.03.001

OMEGA Speedmaster '57 Blue Chronograph Dial Steel Men's Watch 332.10.41.51.03.001

Omega Speedmaster '57 Blue Chronograph Dial Steel Men's Watch, purchased in 2024 with original AD receipt and box.

  • Condition: Excellent
  • Box: yes
  • Papers: original AD receipt
Posted at
Mar 31, 2025, 6:57 PM
Active
Omega Speedmaster - FOIS - 310.30.40.50.06.001 ( excellent / 2024 )

Omega Speedmaster - FOIS - 310.30.40.50.06.001 ( excellent / 2024 )

This Omega Speedmaster FOIS is a 39.7mm stainless steel case watch with the 3861 Calibre. It comes with all original boxes, papers, booklets, and an Omega Warranty Card dated November 2024.

  • Condition: Excellent condition
  • Case size: 39.7mm
  • Movement: Omega 3861 Calibre
Posted at
Mar 28, 2025, 3:40 PM
Active
Omega Speedmaster '57 - 40.5mm Co-Axial - 332.10.41.51.01.001 ( excellent )

Omega Speedmaster '57 - 40.5mm Co-Axial - 332.10.41.51.01.001 ( excellent )

This Omega Speedmaster '57 is a Novelties 2022 model with a 40.5mm stainless steel case, powered by the Master Co-Axial movement.

  • Condition: Excellent
  • Case size: 40.5mm diameter
  • Movement type: Master Co-Axial
Posted at
Mar 28, 2025, 3:39 PM
Active
Omega Speedmaster '57 - Black / Leather - 331.12.42.51.01.002 ( excellent )

Omega Speedmaster '57 - Black / Leather - 331.12.42.51.01.002 ( excellent )

This Omega Speedmaster '57 Chronograph features a black dial on a leather strap, housed in a 41.5mm stainless steel case with a 9300 Master Co-Axial Movement.

  • Condition: Excellent
  • Case size: 41.5mm
  • Movement type: Master Co-Axial
Posted at
Mar 27, 2025, 3:24 PM
Active
2002 Omega Speedmaster "Reduced" Ref. 3510.50 with Box & Papers

2002 Omega Speedmaster "Reduced" Ref. 3510.50 with Box & Papers

Omega - 3510.50 · $3,050
The Omega Speedmaster Reduced Automatic is a Luminova example in excellent pre-owned condition with a dial and hands in good condition, measuring 39mm in diameter.

  • Condition: Excellent
  • Case Width: 39mm
  • Strap Length: 7.5 inches
  • Movement: Automatic
Posted at
Mar 27, 2025, 1:32 PM
Active
Omega Speedmaster Dark Side of the Moon -311.92.44.51.01.003 - Ceramic - 44mm

Omega Speedmaster Dark Side of the Moon -311.92.44.51.01.003 - Ceramic - 44mm

The Omega Speedmaster 'Dark Side of the Moon' is a ceramic watch with a black dial, measuring 44mm in diameter. It features a co-axial chronograph movement and comes with an Omega box set, warranty card, and manual.

  • Condition: Pre-Owned (Mint Grade)
  • Case size: 44mm
  • Bracelet type: Black Canvas with Tang Buckle
  • Movement: Co-Axial Chronograph
Posted at
Mar 26, 2025, 8:13 PM
Active
Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( excellent )

Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( excellent )

This Omega Speedmaster Moonwatch Professional features a 42mm stainless steel case, white dial, and sapphire crystal.

  • Condition: Excellent condition
  • Case size: 42mm diameter
  • Movement type: Omega Master Chronometer Movement
Posted at
Mar 26, 2025, 3:37 PM
Active
Omega SPEEDMASTER SNOOPY EYES ON THE STARS LIMITED EDITION BOXES PAPERS

Omega SPEEDMASTER SNOOPY EYES ON THE STARS LIMITED EDITION BOXES PAPERS

Omega - 3578.51 · $12,825
42mm Omega Speedmaster Professional Moonwatch Snoopy 'Eyes on the Stars' in Stainless Steel, with black dial and Hesalite glass.

  • Condition: Excellent Condition
  • Movement: 1861 Manual-Winding Movement
  • Bracelet size: fits up to 7.5 inches wrist
  • Box papers: includes Omega wooden box, manual/cards dated 01.2004
Posted at
Mar 25, 2025, 9:10 PM
Active
Omega Speedmaster 321 Ed White Full Box & Papers

Omega Speedmaster 321 Ed White Full Box & Papers

Omega - 311.30.40.30.01.001 · $14,950
A Stealth Omega Speedmaster 321 Ed White with complete set, including inner & outer box, cards, loupe, strap changing tool, springbars, nato bands, booklets, and more. Sparing use over the last year has resulted in minor cosmetic issues.

  • Condition: Very clean and great condition with minor hairlines and a small nick on the bezel
  • Year: 2021
  • Condition of clasp/bracelet: hairlines
Posted at
Mar 25, 2025, 6:25 PM
Active