Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black Lacquer

Reference 310.30.42.50.01.004

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black Lacquer

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.
Buy Now on Jomashop
This is an affiliate link

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] Omega Speedmaster Ref. 3510.50

Omega Speedmaster Ref. 3510.50

Omega - 3510.50
The Omega Speedmaster Ref. 3510.50 is being listed for sale.

Posted at
Apr 17, 2026, 4:26 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega - 105.003-65 · $9,850
This Omega Speedmaster Ed White Ref. 105.003-65 is a historically significant watch with a stunning brown tropical dial and matching tritium hands that glow under UV light. It's one of the most collectible variants among Speedmaster enthusiasts, featuring strong proportions and a well-preserved stainless steel case.

  • Condition: good condition
  • Case size: 39mm diameter
  • Year produced: 1965
  • Movement serviced: yes, in July 2025
Posted at
Apr 17, 2026, 1:06 PM
Active
View listing on r/WatchExchange
[wts] 2026 Omega Dark Side of The Moon Apollo 8 Speedmaster w/ Rocketship 310.92.44.50.01.001 $12,499

2026 Omega Dark Side of The Moon Apollo 8 Speedmaster w/ Rocketship 310.92.44.50.01.001 $12,499

Omega - 310.92.44.50.01.001 · $12,499
This 2026 Omega Dark Side of The Moon Apollo 8 Speedmaster is a high-end timepiece featuring a black ceramic case, black dial, and sapphire crystal. It has a 50-hour power reserve and is water-resistant up to 50m.

  • Condition: Excellent preowned condition, 9.9/10
  • Case size: 44.25mm diameter
  • Movement: 3869 caliber movement
  • Power reserve: 50 hours
Posted at
Apr 17, 2026, 12:52 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Date 38.5mm 3513.54

Omega Speedmaster Date 38.5mm 3513.54

Omega - 3513.54 · $1,675
This Omega Speedmaster Date is a 38.5mm watch from 1998 in good condition, with signs of wear but no major marks.

  • Condition: good condition with some wear
  • Year: 1998
  • Size: 38.5mm
  • Functions: running great and functions properly
Posted at
Apr 17, 2026, 12:09 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Racing 326.30.40.50.03.001

Omega Speedmaster Racing 326.30.40.50.03.001

Omega - 326.30.40.50.03.001 · $2,550
This Omega Speedmaster Racing is a high-end sports watch designed for performance and style.

  • Condition: great condition with some light wear
  • Water Resistance: 30m (no data found for depth rating)
  • Size: 40mm diameter
Posted at
Apr 17, 2026, 12:07 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Reduced 3510.50 Omega Buckle

Omega Speedmaster Reduced 3510.50 Omega Buckle

Omega - 3510.50 · $2,075
For sale is an Omega Speedmaster Reduced in great condition with a nice patina on the dial.

  • Condition: great condition with some patina on the dial and wear on the strap and clasp
  • Band type: leather
  • Buckle type: Omega original
Posted at
Apr 17, 2026, 12:05 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Hesalite 2023, $5700

Omega Speedmaster Hesalite 2023, $5700

Omega - 310.30.42.50.01.001 · $5,700
This Omega Speedmaster Hesalite is a recent model, released in 2023, featuring a Preowned Condition with its original box and warranty.

  • Condition: Preowned
  • Shipping cost: $100 for USA
  • Payment options: Wire or Credit Card (+4.9% & 4 days clearance)
  • Warranty included: 2023 warranty
Posted at
Apr 17, 2026, 10:24 AM
Active
View listing on r/WatchExchange
[WTS][US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set

[US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set

Omega - 311.30.40.30.01.001 · $15,700
Up for sale is an Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - Full Set, functions perfectly mechanically without issue.

  • Condition: pristine condition with minor hairlines on clasp, case, and bracelet
  • Case size: 39.7mm
  • Bracelet condition: pristine condition with minor hairlines on clasp, case, and bracelet
Posted at
Apr 17, 2026, 6:20 AM
Active
View listing on r/WatchExchange
[WTS][US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set

[US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set

Omega - 310.30.42.50.04.001 · $8,000
Up for sale is an Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set Watch is in pristine condition and functions perfectly mechanically, without issue.

  • Condition: pristine with minor hairlines on clasp, case, and bracelet
  • Case size: 42mm diameter
Posted at
Apr 17, 2026, 6:14 AM
Active
View listing on r/WatchExchange