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 - 329.30.44.51.01.001 - Box and Papers

Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers

Omega - 329.30.44.51.01.001 · $5,795
This is a Omega Speedmaster Racing Chronograph, model number 329.30.44.51.01.001, in pre-owned condition.

  • Condition: pre-owned with minor wear
  • Size: 44.25mm diameter
  • Bracelet material: stainless steel
Posted at
Apr 19, 2026, 1:53 PM
Active
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[WTS] Omega Speedmaster Date Chronometer 3210.50.00 — Big Seahorse, Cal. 1164 (Serviced) — $2,150 Shipped (Tariff Coverd)

Omega Speedmaster Date Chronometer 3210.50.00 — Big Seahorse, Cal. 1164 (Serviced) — $2,150 Shipped (Tariff Coverd)

Omega - 3210.50.00 · $2,150
This Omega Speedmaster Date Chronometer features a classic black dial and iconic tachymeter bezel, paired with the Cal. 1164 automatic chronometer-certified movement.

  • Condition: Honest wear consistent with age, minor signs of use on bezel insert
  • Case size: 40mm diameter
  • Movement: Cal. 1164 (ETA 7750 base)
  • Water resistance: unknown
Posted at
Apr 19, 2026, 8:21 AM
Active
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[WTS] Omega Speedmaster Moonwatch Sapphire / 310.30.42.50.01.002 / 2022 full set under warranty - $5950

Omega Speedmaster Moonwatch Sapphire / 310.30.42.50.01.002 / 2022 full set under warranty - $5950

Omega - 310.30.42.50.01.002 · $5,950
For sale is a Omega Speedmaster Moonwatch Sapphire Sandwich, overall in excellent condition.

  • Condition: Overall excellent condition with normal marks on the case, bracelet, clasp, and caseback
  • Year: 2022
  • Warranty: under warranty
Posted at
Apr 18, 2026, 9:40 PM
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[WTS] Rare Vintage Omega Speedmaster Teutonic Ghost Gray Dial Ref 145.0044

Rare Vintage Omega Speedmaster Teutonic Ghost Gray Dial Ref 145.0044

Omega - 145.0044 · $2,795
This is a rare vintage Omega Speedmaster Teutonic model made for the German market in the early 1980s. It features a unique gray dial, bead-blasted case, and integrated bracelet.

  • Condition: Pre-owned, with wear
  • Diameter: 42mm
  • Movement: Manual wound Omega cal 861
  • Bracelet length: fits up to app 7.25 inches
Posted at
Apr 18, 2026, 9:08 PM
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[WTS] Omega Speedmaster Dark Side of The Moon Black Ceramic 311.92.44.51.01.006 Full Set

Omega Speedmaster Dark Side of The Moon Black Ceramic 311.92.44.51.01.006 Full Set

Omega - 311.92.44.51.01.006 · $7,600
This Omega Speedmaster Dark Side of The Moon features a black ceramic case and bezel, with a black dial and vintage Super-LumiNova.

  • Condition: Excellent preowned condition with no signs of wear on the case, bracelet, bezel or buckle.
  • Case material: Black Ceramic
  • Case dimensions: 44.25mm diameter
  • Bezel material: Black Ceramic
Posted at
Apr 18, 2026, 9:05 PM
Active
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[WTS] Omega Speedmaster Professional Moon Watch 42mm Steel 311.30.42.30.01.005 Box & Manual

Omega Speedmaster Professional Moon Watch 42mm Steel 311.30.42.30.01.005 Box & Manual

Omega - 311.30.42.30.01.005 · $5,100
A stainless steel Omega Speedmaster Professional Moon Watch in 42mm diameter with a black dial and manual wind movement.

  • Condition: Preowned with scratches on the case, bracelet, buckle and light scratches on the crystal
  • Case dimensions: 42mm diameter
  • Band material: Stainless Steel Bracelet
  • Additional straps: 2
Posted at
Apr 18, 2026, 8:13 PM
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[WTS] Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit - Price Reduced

Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit - Price Reduced

Omega - 310.30.42.50.01.002 · $6,695
The Omega Speedmaster Professional is a modern interpretation of the iconic design, featuring a sapphire crystal front and display caseback with a view of the Omega movement.

  • Condition: Near like-new
  • Size: 42mm diameter
Posted at
Apr 18, 2026, 6:01 PM
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[WTS] Omega Speedmaster Reduced - Mother of Pearl - White Dial - Factory Strap

Omega Speedmaster Reduced - Mother of Pearl - White Dial - Factory Strap

Omega - Speedmaster Reduced · $2,350
A super rare and unique Omega Speedmaster reduced model with a 39mm case, featuring a stunning Mother of Pearl dial.

  • Condition: Good condition for the age
  • Case size: 39mm
  • Strap type: Leather (factory)
  • Bezel wear: Some wear
Posted at
Apr 18, 2026, 5:59 PM
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[WTS] 2023 Omega Speedmaster ’57 Blue Dial 41.5mm 332.10.41.51.03.001 Full Set Excellent

2023 Omega Speedmaster ’57 Blue Dial 41.5mm 332.10.41.51.03.001 Full Set Excellent

Omega - 332.10.41.51.03.001 · $8,300
The Omega Speedmaster '57 features a striking sun-brushed blue dial with vintage-inspired hands and recessed sub-dials, paying homage to the iconic original.

  • Condition: Excellent
  • Diameter: 40.5mm
  • Material: stainless steel
Posted at
Apr 18, 2026, 2:38 PM
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