Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman

Reference 310.30.42.50.01.003

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is a piece of history wrapped around your wrist, with its rich lineage and modern upgrades capturing the hearts of watch enthusiasts and collectors alike. This manual-winding chronograph movement features a co-axial escapement and silicon balance spring, making it resistant to magnetic fields up to 15,000 gauss. The plexi glass provides a warm, vintage feel that many collectors adore, while the stainless steel case measures 42mm in diameter and has a water resistance of 50 meters. This timepiece is perfect for everyday wear, suitable for both formal and casual occasions. With its stunning design, robust movement, and versatility, it's a celebration of heritage, precision, and style.
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Key Features

  • Omega Caliber 3861 Movement
  • Plexi Glass with Vintage Feel
  • 42mm Stainless Steel Case
  • 50m Water Resistance
  • Manual-Winding Chronograph Function
  • Co-Axial Escapement and Silicon Balance Spring

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman
Reference
310.30.42.50.01.003
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Plexi
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster Moonwatch

Omega Speedmaster Moonwatch

Omega - 310.30.42.50.01.002 · $5,950
Additional Details: Omega Speedmaster Moonwatch, iconic modern design with a 42mm case.

  • Condition: Mint condition
  • Case size: 42mm diameter
  • Set included: Full set - inner and outer box, cards, manual, all links
Posted at
Jul 30, 2025, 10:58 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Michael Schumacher Legend Edition Ref 3506.31

Omega Speedmaster Michael Schumacher Legend Edition Ref 3506.31

Posted at
Jul 29, 2025, 8:06 PM
Active
View listing on r/WatchExchange
[WTS] 2025 Omega Silver Snoopy Speedmaster

2025 Omega Silver Snoopy Speedmaster

Posted at
Jul 29, 2025, 8:05 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Apollo 17 45th Anniversary (Full Set, 2-yr warranty) Ref: 311.30.42.30.03.001

Omega Speedmaster Apollo 17 45th Anniversary (Full Set, 2-yr warranty) Ref: 311.30.42.30.03.001

Omega - 311.30.42.30.03.001 · $8,000
A rare and exquisite Omega Speedmaster Apollo XVII, a limited edition timepiece that commemorates the 45th anniversary of the final moon landing in 1972.

  • Condition: Very good condition with slight imperfections on the dial
  • Case size: 42mm
  • Water resistance depth: 50 meters / 167 feet
  • Movement type: Manual-Winding Chronograph Movement
Posted at
Jul 29, 2025, 7:43 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Reduced Two Tone

Omega Speedmaster Reduced Two Tone

Omega - 3714.20.80 · $2,500
A rare Omega Speedmaster Reduced Two Tone with a white dial and gold subdials, kept in overall good condition for its age.

  • Condition: good, some wear on the case and bezel
  • Movement: Cal 1140
  • Case size: 39mm diameter
  • Dial color: white
Posted at
Jul 28, 2025, 9:44 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Automatic 3510.50 Speedy Reduced

Omega Speedmaster Automatic 3510.50 Speedy Reduced

Omega - 3510.50 · $4,500
  • Movement: Calibre 3330, automatic
  • Water Resistance: 30m
Posted at
Jul 28, 2025, 3:30 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Moonwatch black fabric Two‑piece Strap 032CWZ014117 with stainless steel clasp

Omega Speedmaster Moonwatch black fabric Two‑piece Strap 032CWZ014117 with stainless steel clasp

Omega - 032CWZ014117 · $525
A black fabric Two-piece Strap Omega Speedmaster Moonwatch with a stainless steel clasp, purchased only a few months ago and worn once.

  • Condition: Like new, only worn once
  • Authenticity: 100% authentic
  • Purchase date: July 12 this year
  • Seller location: New Jersey
Posted at
Jul 28, 2025, 2:14 PM
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[WTS] Omega Speedmaster Professional ‘Tintin’ – FULL SET

Omega Speedmaster Professional ‘Tintin’ – FULL SET

Omega - 311.30.42.30.01.004 · $10,295
This Omega Speedmaster Professional Moonwatch is a legendary chronograph with a distinctive red-and-white checkered outer track, inspired by Tintin's rocket from the classic comic *Objectif Lune*. It's powered by the reliable Caliber 1861 movement and features a 42mm stainless steel case with a black dial.

  • Condition: excellent
  • Case size: 42mm diameter
  • Movement type: manual-winding
Posted at
Jul 28, 2025, 1:49 PM
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View listing on r/WatchExchange
Omega Speedmaster Professional ‘Tintin’ – FULL SET

Omega Speedmaster Professional ‘Tintin’ – FULL SET

Omega - 311.30.42.30.01.004 · $10,295.001
This Omega Speedmaster Professional Moonwatch 'Tintin' is a legendary chronograph with a distinctive red-and-white checkered outer track, inspired by Tintin's rocket from the classic comic Objectif Lune. It is housed in a 42mm stainless steel case with a black dial and Hesalite crystal, powered by the reliable Caliber 1861 movement.

  • Condition: Excellent
  • Box set: Full set including inner and outer boxes, warranty card, Pictograms card, Operating Instructions manual, and full links
  • Movement: Caliber 1861, manual-winding
  • Water resistance: Not specified
Posted at
Jul 28, 2025, 1:45 PM
Active
View listing on WatchUseek