Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / White / Sapphire / Bracelet

Reference 310.30.42.50.04.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861, reference number 310.30.42.50.04.001, is a stunning timepiece that blends functionality with elegance. Designed for both everyday wear and special occasions, this watch boasts a rich history, a robust build, and a breathtaking aesthetic that easily draws attention. The pristine white dial exudes sophistication, while the stainless steel case measures 42 mm in diameter, striking the perfect balance between presence and wearability. The open case back showcases the intricate workings of the Caliber 3861 movement, highlighting the beauty of Swiss craftsmanship. This watch is more than just a timekeeper; it's a piece of history, a testament to Omega's commitment to precision and style.
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MSRP: $8,100
Market Price: $7,737

Key Features

  • Omega Caliber 3861 Movement
  • Master Chronometer Certification
  • Sapphire Crystal Glass
  • Tachymeter Bezel for Speed Measurement
  • Water Resistance up to 50 meters
  • Co-Axial Escapement for Improved Accuracy and Longevity
  • Manual-Winding Chronograph Movement with Power Reserve of 50 hours

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel / White / Sapphire / Bracelet
Reference
310.30.42.50.04.001
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Stainless Steel 42mm
Dial Color
White
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster 38 324.30.38.50.01.001 | 2024 Full Set w/ Extra OEM Strap

Omega Speedmaster 38 324.30.38.50.01.001 | 2024 Full Set w/ Extra OEM Strap

A 2024 Omega Speedmaster 38 with a slight scratching on the anti-reflective coating, available for sale in excellent condition with extra OEM strap and various other accessories.

  • Condition: Pre-Owned | Slight scratching on AR Coating
  • Water resistance: 350 AMP
Posted at
Jan 13, 2026, 10:23 PM
Active
[WTS] 2024 Omega Speedmaster “First Omega in Space” 310.30.40.50.06.001 – Full Set + Extra Uncle Bracelet – $6,950 Shipped

2024 Omega Speedmaster “First Omega in Space” 310.30.40.50.06.001 – Full Set + Extra Uncle Bracelet – $6,950 Shipped

A modern reissue of the Speedmaster worn by Wally Schirra during the Sigma 7 mission, featuring a slimmer 39.7mm case and vintage-inspired aesthetic.

  • Condition: Excellent
  • Case size: 39.7mm
  • Movement: Omega Caliber 3861, Manual-wind chronograph
  • Crystal: Sapphire
Posted at
Jan 13, 2026, 7:58 PM
Active
[WTS]  20mm Omega Integrated Speedmaster Black Rubber Strap & Omega Clasp - (Backordered)  2. 20mm Omega SMP 300 Black Rubber Strap & Omega OEM Clasp

20mm Omega Integrated Speedmaster Black Rubber Strap & Omega Clasp - (Backordered) 2. 20mm Omega SMP 300 Black Rubber Strap & Omega OEM Clasp

The seller is offering two Omega watch straps for sale: a black rubber strap with integrated Speedmaster design and an SMP 300 Black Rubber Strap. Both straps are OEM and come with their respective clasps.

  • Strap Type1: Integrated Speedmaster Rubber Strap
  • Strap Type2: SMP 300 Black Rubber Strap
  • Clasp Type1: Omega OEM Stainless Steel Deployant Clasp
Posted at
Jan 13, 2026, 5:42 PM
Active
[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 · $14,995
The Omega Speedmaster Moonwatch 145.022-69 features a super tropical brown dial with heavy yellow patina, a deep blue bezel, and tritium that glows green under UV light.

  • Condition: Very rare and fully original, beautiful condition
  • Case size: 42mm
  • Year of production: 1969
  • Movement serviced: November 2025
Posted at
Jan 13, 2026, 5:18 PM
Active
[WTS] Omega Speedmaster white dial on bracelet with oem rubber included

Omega Speedmaster white dial on bracelet with oem rubber included

Omega - Speedmaster · $7,500
A white Omega Speedmaster on bracelet, sold in good condition with some minor cosmetic issues.

  • Condition: Good condition with some swirls and light scratches (8.5/10)
  • Box And Papers: Full kit
  • Purchase Receipt: Original
Posted at
Jan 13, 2026, 2:42 PM
Active
[WTS] Omega Speedmaster. Sapphire Sandwich. Automatic. Box, Papers.

Omega Speedmaster. Sapphire Sandwich. Automatic. Box, Papers.

Omega Speedmaster, also known as the Sapphire Sandwich, is a high-end automatic watch that features strong lume.

  • Water Resistance: 30m
  • Box And Papers: true
Posted at
Jan 13, 2026, 1:38 PM
Active
[WTS] Omega Speedmaster Sapphire

Omega Speedmaster Sapphire

A Omega Speedmaster Moonwatch listed for sale, stated to run great with excellent case condition.

  • Condition: Excellent
  • Case condition: Excellent
Posted at
Jan 13, 2026, 8:40 AM
Active
[WTS] Omega Speedmaster Two Tone Reduced

Omega Speedmaster Two Tone Reduced

Omega - 3714.20.80 · $2,500
A rare two-tone Omega Speedmaster reduced, featuring a white dial and gold subdials, housed in an 18k gold bezel.

  • Condition: Good, some wear on the case and bezel
  • Movement: Cal 1140
  • Size: 39mm diameter
Posted at
Jan 12, 2026, 8:37 PM
Active
[WTS] Omega Speedmaster Racing Chronograph Silver Dial Watch 326.30.40.50.02.001 Complete Set

Omega Speedmaster Racing Chronograph Silver Dial Watch 326.30.40.50.02.001 Complete Set

The Omega Speedmaster Racing features a striking silver white dial with bold chronograph hands and counters, paired with a stainless steel case and bracelet for a timeless design with modern presence.

  • Condition: Excellent
  • Case material: stainless steel
  • Bracelet type: bracelet
  • Movement type: chronograph movement
Posted at
Jan 12, 2026, 6:52 PM
Active