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.
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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] 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 · $2,350
This Omega Speedmaster Racing is available for sale in excellent working order, and its condition allows it to be barely noticeable despite having some slight wear.

  • Condition: great condition with some light wear
Posted at
May 1, 2026, 11:04 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Day Date 3523.80

Omega Speedmaster Day Date 3523.80

Omega - 3523.80 · $2,275
For sale is an Omega Speedmaster Day Date with a beautiful blue dial, it's in excellent condition and running solid.

  • Condition: Excellent condition
Posted at
May 1, 2026, 11:02 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Date 3211.31 COMPLETE SET + OEM BRACELET

Omega Speedmaster Date 3211.31 COMPLETE SET + OEM BRACELET

Omega - 3211.31 · $2,650
For sale is an Omega Speedmaster Date 3211.31 in amazing condition with hardly any wear on it, coming with the complete set including warranty card and original speedmaster bracelet.

  • Condition: amazing condition with hardly any wear
  • Bracelet Condition: great condition
  • Includes: warranty card
  • Has Original Bracelet: yes
Posted at
May 1, 2026, 10:54 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 · $15,600
A black dial Omega Speedmaster Calibre 321 in 39.7mm is up for sale with a full set of accessories.

  • Condition: pristine condition
  • Case Size: 39.7mm diameter
Posted at
May 1, 2026, 7:41 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 · $7,950
Up for sale is an Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001, in fantastic condition with minor hairlines on the clasp, case, and bracelet.

  • Condition: pristine with minor hairlines on clasp, case, and bracelet
  • Case size: 42mm diameter
Posted at
May 1, 2026, 7:36 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional (310.30.42.50.01.002)

Omega Speedmaster Professional (310.30.42.50.01.002)

Omega - 310.30.42.50.01.002 · $6,800
This Omega Speedmaster Professional features a black dial, sapphire crystal on a steel bracelet and is powered by manual caliber 3861.

  • Condition: Excellent
  • Case size: 42mm
  • Material: Stainless Steel
  • Crystal type: Sapphire
Posted at
May 1, 2026, 7:28 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Triple Calendar Day-Date Ref.3221.30.00 40mm | Great Condition (With Box & Serviced) | $2250

Omega Speedmaster Triple Calendar Day-Date Ref.3221.30.00 40mm | Great Condition (With Box & Serviced) | $2250

Omega - 3221.30.00 · $2,250
This Omega Speedmaster Triple Calendar Day-Date features a stainless steel case with a thickness of around 15mm and is paired with a sapphire crystal and rated to 100m water resistance. The dial includes chronograph registers, day, date, and month displays, as well as a 24-hour/GMT indication. It's powered by the Caliber 3606 movement.

  • Condition: Great
  • Water resistance: 100m
  • Movement power reserve: 44 hours
  • Bracelet size range: 18.5-19cm (7.2-7.5 inches)
Posted at
Apr 30, 2026, 10:22 PM
Active
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[WTS] Omega Speedmaster Professional Moonwatch – Ref. 310.30.42.50.01.001 – Excellent Condition – 2022

Omega Speedmaster Professional Moonwatch – Ref. 310.30.42.50.01.001 – Excellent Condition – 2022

Omega - 310.30.42.50.01.001 · $5,450
The Omega Speedmaster Professional Moonwatch is a modern iteration of the legendary Moonwatch with updated movement technology and finishing while staying true to its heritage. It features an iconic Hesalite crystal and manual-wind Master Chronometer movement 3861. The watch is in excellent condition, showing only extremely light signs of wear.

  • Condition: excellent, minimal hairline scratches
  • Case size: 42mm
  • Movement: Cal. 3861 manual-wind Co-Axial Master Chronometer
  • Crystal: Hesalite
Posted at
Apr 30, 2026, 8:58 PM
Active
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[WTS] PRICE DROPPP Omega Speedmaster Chronograph Silver Dial – Ref. 324.30.38.50.02.001

PRICE DROPPP Omega Speedmaster Chronograph Silver Dial – Ref. 324.30.38.50.02.001

Omega - 324.30.38.50.02.001 · $4,548
The Omega Speedmaster 38 offers a refined, modern take on the legendary Speedmaster design, combining classic chronograph heritage with a more versatile and wearable case size.

  • Case Size: 38mm
  • Case Material: stainless steel
  • Bezel: fixed tachymeter
Posted at
Apr 30, 2026, 8:54 PM
Active
View listing on r/WatchExchange