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 38MM Cappuccino Dial 18k Sedna Gold Full Set

Omega Speedmaster 38MM Cappuccino Dial 18k Sedna Gold Full Set

Omega - 324.23.38.50.02.002 · $6,000
A 2023 Omega Speedmaster with a 38mm case size, suitable for both men and women, featuring an 18K Sedna Gold case and Cappuccino Dial.

  • Condition: Great condition
  • Case Size: 38mm
  • Material: 18K Sedna Gold
  • Band Material: Taupe-brown leather
Posted at
May 22, 2026, 9:19 PM
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[WTS] Labor Day Weekend Sale – Omega Speedmaster Reduced “Red Schumacher” 3510.61 – OG Bracelet – $2945 + shipping OBO

Labor Day Weekend Sale – Omega Speedmaster Reduced “Red Schumacher” 3510.61 – OG Bracelet – $2945 + shipping OBO

Omega - 3510.61 · $2,945
  • Condition: Very nice condition for its age with normal light wear consistent with use
  • Bracelet Fits Wrist Size: ~6.75 inch wrist depending on preferred fit
  • Bezel Error: 0.1 ms
  • Amplitude: 275-299
Posted at
May 22, 2026, 8:30 PM
Active
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[WTS] Labor Day Weekend Sale – Omega Speedmaster Professional 3861 Sapphire (2022) – Full Set – Original Clasp + Micro-adjust Clasp – $6375 + shipping obo

Labor Day Weekend Sale – Omega Speedmaster Professional 3861 Sapphire (2022) – Full Set – Original Clasp + Micro-adjust Clasp – $6375 + shipping obo

Omega - 3861 Sapphire · $6,375
A classic Omega Speedmaster Professional Moonwatch in excellent condition, featuring a sapphire crystal front and back, Co-Axial Master Chronometer movement, and original and upgraded bracelet clasps.

  • Condition: Excellent overall condition, very light wear from normal use
  • Box And Papers: full set
  • Bracelet Length: full links plus additional uncle Seiko 1.5 links
  • Clasp Type: original clasp + micro-adjust clasp
Posted at
May 22, 2026, 8:25 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster '57 Chronograph Watch 332.10.41.51.10.001

Omega Speedmaster '57 Chronograph Watch 332.10.41.51.10.001

Omega - 332.10.41.51.10.001 · $6,700
Purchased in December 2024, Under warranty until December 2029. The watch functions as normal.

  • Condition: Very good condition, very light wear
  • Water Resistance: 50m
Posted at
May 22, 2026, 6:45 PM
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[WTS] Omega Speedmaster Pro Sapphire Sandwich 2025 -$5000

Omega Speedmaster Pro Sapphire Sandwich 2025 -$5000

Omega - Speedmaster Professional Moonwatch Sapphire Sandwich 2025 · $5,000
A Speedmaster Professional Moonwatch in the 2025 Sapphire Sandwich model, featuring a very clean case, crystal, and dial.

  • Condition: Very good overall
  • Year: 2025
  • Warranty Cards: 3
Posted at
May 22, 2026, 2:41 PM
Active
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[WTS] Omega Speedmaster Day Date 3523.80

Omega Speedmaster Day Date 3523.80

Omega - 3523.80 · $2,225
For sale is an Omega Speedmaster Day Date with a beautiful blue dial. The watch is running super solid and comes as watch only.

  • Condition: Excellent
  • Payment methods accepted: crypto, other
  • Local pickup available: true
  • Open to trades for specific brands: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
May 22, 2026, 11:42 AM
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[WTS] Omega Speedmaster Date 3511.50

Omega Speedmaster Date 3511.50

Omega - 3511.50 · $1,975
a super cool reverse panda dial Omega Speedmaster date that was only sold in Japan.

  • Condition: Great condition
  • Location: Southwest FL
  • Payment Methods: cryptocurrency, bank transfer, other methods
Posted at
May 22, 2026, 11:32 AM
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[WTS] 2026 Omega Speedmaster Moonwatch Hesalite 42mm 310.30.42.50.01.001 — Like New Condition, Box & Papers

2026 Omega Speedmaster Moonwatch Hesalite 42mm 310.30.42.50.01.001 — Like New Condition, Box & Papers

Omega - 310.30.42.50.01.001 · $6,100
The Omega Speedmaster Moonwatch Hesalite features a black stepped dial with a hesalite crystal and a manually wound caliber 3861 movement, preserving the iconic design heritage of the classic Moonwatch formula.

  • Condition: Like new
  • Case diameter: 42mm
  • Lug to lug: 47.5mm
  • Thickness: 13.2mm
Posted at
May 22, 2026, 9:30 AM
Active
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[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 · $15,450
Additional Details: Up for sale is an Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - Full Set Watch is in pristine condition and functions perfectly mechanically.

  • Condition: pristine condition with minor hairlines
  • Diameter: 39.7mm
Posted at
May 22, 2026, 7:15 AM
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