Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black Lacquer

Reference 310.30.42.50.01.004

About this watch

The Speedmaster Moonwatch Professional 310.30.42.50.01.004 debuted in 2026 as a sapphire-crystal variant of the modern Moonwatch, retaining the core design characteristics associated with the fourth-generation Speedmaster worn during the Apollo missions. The stainless steel case measures 42 mm in diameter, with a lug-to-lug length of 47.5 mm and a thickness of 13.54 mm. Sapphire crystal is fitted to both the front and the caseback, with anti-reflective treatment applied to the inner surface of the front crystal. Water resistance is rated to 50 metres. The watch is delivered on a polished-brushed stainless steel bracelet constructed in the contemporary Moonwatch five-arched-link style and fitted with a foldover clasp incorporating OMEGA’s comfort adjustment system. The dial adopts an inverted black-and-white configuration constructed using a double-plate step dial. The upper dial plate is finished in black with a varnished and lacquered surface, while the recessed subdials are executed in white with the same varnished finish. The subdials are framed by rhodium-plated rings and display small seconds, a 30-minute chronograph counter, and a 12-hour chronograph counter. The minute track is transferred in white on the main dial, with black transfers used on the subdials. Applied hour markers and the OMEGA logo are rhodium-plated, as are the Moonwatch-style hands, all filled with white Super-LumiNova. Surrounding the dial is a black ceramic bezel ring fitted with a tachymeter scale rendered in white enamel, including the characteristic dot-over-90 marking. Powering the watch is the manually wound OMEGA Co-Axial Master Chronometer calibre 3861. The movement operates at 3 Hz, provides a power reserve of approximately 50 hours, and is certified by METAS for precision, magnetic resistance up to 15,000 gauss, and overall performance. The movement is visible through the sapphire crystal caseback.
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Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel / Black Lacquer
Reference
310.30.42.50.01.004
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] 2023 Omega Speedmaster Moonphase 44.25mm 304.33.44.52.03.001 Blue Dial - Box and Papers

2023 Omega Speedmaster Moonphase 44.25mm 304.33.44.52.03.001 Blue Dial - Box and Papers

This 2023 Omega Speedmaster Moonphase features a 44.25mm blue dial and is in good condition with light signs of wear on the case and clasp.

  • Condition: Good preowned condition
  • Case Size: 44.25mm diameter
  • Warranty: 5 year warranty remaining
Posted at
Jan 14, 2026, 10:53 AM
Active
[WTS] 1989 Omega Speedmaster Automatic 175.0032. Vintage Speedy | Runs well

1989 Omega Speedmaster Automatic 175.0032. Vintage Speedy | Runs well

Omega - 175.0032 · $2,700
A vintage Omega Speedmaster Automatic from 1989, featuring incredible tritium lume patina and a few variations in caseback and bracelet.

  • Condition: Excellent, with honest but light wear
  • Caseback variations: multiple caseback designs available for this reference
  • Bracelet variations: multiple bracelet options available for this reference
Posted at
Jan 14, 2026, 9:56 AM
Active
[WTS][US] Omega Speedmaster Chronoscope - White Panda Dial - 43mm - 329.30.43.51.02.002

[US] Omega Speedmaster Chronoscope - White Panda Dial - 43mm - 329.30.43.51.02.002

This Omega Speedmaster Chronoscope features a 43mm case and white panda dial.

  • Condition: Fantastic condition with minor hairlines
  • Case Size: 43mm diameter
Posted at
Jan 14, 2026, 7:54 AM
Active
[WTS] Omega Speedmaster First Omega In Space FOIS 40mm 310.30.40.50.06.001 | 8/2025 Full Set

Omega Speedmaster First Omega In Space FOIS 40mm 310.30.40.50.06.001 | 8/2025 Full Set

This is a 40mm Omega Speedmaster First Omega In Space (FOIS) with a Master Chronometer certification.

  • Condition: Pre-Owned, Great Condition
  • Bezel condition: Clean
  • Crystal condition: Clean
  • Bracelet length: 23 Links
Posted at
Jan 13, 2026, 10:27 PM
Active
[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