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] 2024 Omega Speedmaster ’57 Sedna Gold Two-Tone 41.5mm 331.22.42.51.01.001 Full Set Excellent

2024 Omega Speedmaster ’57 Sedna Gold Two-Tone 41.5mm 331.22.42.51.01.001 Full Set Excellent

Omega - 331.22.42.51.01.001 · $7,450
A vintage-inspired Speedmaster with modern Master Co-Axial engineering, featuring 18K Sedna gold case and black dial.

  • Condition: Excellent
  • Case material: 18K Sedna gold
  • Diameter: 41.5mm
Posted at
Apr 18, 2026, 2:33 PM
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[WTS] Omega Speedmaster 3513.20 Chrnograph Olympic Special Edition Blue Red Hands |Good conditon| Serviced| Full Box Paper Tag| 2300$

Omega Speedmaster 3513.20 Chrnograph Olympic Special Edition Blue Red Hands |Good conditon| Serviced| Full Box Paper Tag| 2300$

Omega - 3513.20 · $2,300
This Omega Speedmaster stands out with its white dial and eye-catching red and blue hands, making it a unique piece.

  • Condition: Good Condition, Serviced
  • Case Size: 39mm diameter
  • Crystal: Sapphire crystal
  • Lug Width: 20mm
Posted at
Apr 18, 2026, 12:59 PM
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[WTS] Omega Speedmaster Day-Date "Reduced" | Black Dial Ref. 3520.50 | 39mm | Stainless Steel | Full Collector's Set

Omega Speedmaster Day-Date "Reduced" | Black Dial Ref. 3520.50 | 39mm | Stainless Steel | Full Collector's Set

Omega - 3520.50 · $62,000
This Omega Speedmaster Day-Date is a black dial model with reference number 3520.50 and features a 39mm stainless steel case.

  • Size: 39mm diameter
Posted at
Apr 18, 2026, 11:53 AM
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[WTS] Omega Speedmaster Automatic 3513.50 - Suede Leather Strap - Good Condition

Omega Speedmaster Automatic 3513.50 - Suede Leather Strap - Good Condition

Omega - 3513.50 · $1,800
A 39mm Omega Speedmaster Automatic with automatic winding, date display, running seconds, chronograph minutes, and chronograph hours features.

  • Condition: Good condition with signs of wear
  • Case size: 39mm
  • Material: Automatic
Posted at
Apr 18, 2026, 11:51 AM
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[WTS] Omega Speedmaster Professional (310.30.42.50.04.001)

Omega Speedmaster Professional (310.30.42.50.04.001)

Omega - 310.30.42.50.04.001 · $7,600
This Omega Speedmaster Professional features a white dial on a steel bracelet, with a case size of 42mm. It is powered by the manual caliber 3861 movement and comes with boxes, booklet, and warranty card.

  • Condition: Excellent
  • Case Size: 42mm
  • Case Material: Stainless Steel
  • Bracelet Material: Stainless Steel
Posted at
Apr 18, 2026, 8:01 AM
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[WTS] OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA - 311.92.44.30.01.001 · $10,000
This OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 is a commemorative watch crafted from black ceramic, featuring a skeletonized dial and laser-ablated details to represent the lunar surface. It's powered by the Calibre 1869 movement with blackened bridges and mainplate.

  • Condition: UNWORN
  • Case size: 44.25mm diameter
  • Movement: Calibre 1869
Posted at
Apr 17, 2026, 10:12 PM
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[WTS] 2015 Omega Speedmaster Grey Side of the Moon 311.93.44.51.99.001 Full Set $7,500

2015 Omega Speedmaster Grey Side of the Moon 311.93.44.51.99.001 Full Set $7,500

Omega - 311.93.44.51.99.001 · $7,500
A modern and highly distinctive take on the Speedmaster line featuring a full grey ceramic case and matching dial.

  • Condition: Excellent (pre-owned, minimal wear)
  • Case Size: 44.25mm
  • Case Material: Grey ceramic
  • Movement: Automatic chronograph (Omega Co-Axial Calibre 9300)
Posted at
Apr 17, 2026, 9:36 PM
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[WTS] Omega Speedmaster Moonwatch White Dial 310.30.42.50.04.001

Omega Speedmaster Moonwatch White Dial 310.30.42.50.04.001

Omega - 310.30.42.50.04.001 · $7,800
This Omega Speedmaster Moonwatch features a white dial and is in overall mint condition.

  • Condition: mint condition
  • Accessories: full set - boxes, papers, warranty card, pictogram card, Master Chronometer card, extra links
Posted at
Apr 17, 2026, 9:19 PM
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[WTS] 2023 Omega Speedmaster Dark Side of The Moon Apollo 8 Black 311.92.44.30.01.001 Full Set

2023 Omega Speedmaster Dark Side of The Moon Apollo 8 Black 311.92.44.30.01.001 Full Set

Omega - 311.92.44.30.01.001 · $8,500
This listing is for a 2023 Omega Speedmaster Dark Side of The Moon Apollo 8, featuring a black ceramic case and leather strap with yellow accents.

  • Condition: Excellent preowned condition with no signs of wear on the case, bracelet, bezel or buckle. Strap has some small spots of wear
  • Case material: black ceramic
  • Case dimensions: 44.25mm diameter
  • Bezel: black ceramic
Posted at
Apr 17, 2026, 8:19 PM
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