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

Current Listings

Omega Speedmaster Professional "Hesalite" 311.30.42.30.01.005 - $3999

Omega - 31130423001005 · $3,999

For sale is my beloved Omega Speedmaster Professional Hesalite Moonwatch, a discontinued model with a caliber 1861 movement, running within spec at +7s/d.

Condition: Pre-owned with wear on the clasp
Caliber: 1861
Box Contents: inner, outer boxes, manuals

Posted at

May 25, 2026, 4:42 PM

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Omega Speedmaster "Grey Side of the Moon” – 311.93.44.51.99.001 – Full Set

Omega - 311.93.44.51.99.001 · $7,750

This Omega Speedmaster features a grey ceramic case and sandblasted platinum 'Lunar Dust' dial, giving it a stealthy and futuristic look while still feeling classic and classy.

Condition: Excellent
Case Size: 44.25mm
Movement: Omega Co-Axial Caliber 9300 chronograph movement

Posted at

May 25, 2026, 4:25 PM

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[US] Omega Speedmaster Moonwatch Professional - White Dial - 42mm- 310.30.42.50.04.001 - Full Set

Omega - 310.30.42.50.04.001 · $8,175

Omega Speedmaster Moonwatch Professional - White Dial in 42mm case size.

Condition: pristine with minor hairlines on clasp, case, or bracelet
Case Size: 42mm

Posted at

May 25, 2026, 1:55 PM

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Omega Speedmaster 3590.50 Serviced with Extra Omega Straps

Omega - 3590.50 · $4,950

The Omega Speedmaster 3590.50 is a vintage classic from the 1994/95 collection, featuring an original tritium dial and historic caliber 861 movement.

Condition: Good
Case width: 42mm
Year produced: 1994/95
Movement manual included: yes

Posted at

May 25, 2026, 1:35 PM

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Omega Speedmaster Reduced 3310.10 Vintage 18K Yellow Gold with Steel ($1999)!

Omega - 3310.10 · $1,999

A vintage Omega Speedmaster Reduced in 18K yellow gold with a 39mm case, featuring an upgraded 175.0033 dial and running in healthy condition.

Condition: Pre-owned with wear, healthy running condition
Case size: 39mm diameter
Serial date: 1989

Posted at

May 25, 2026, 1:08 PM

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Omega Speedmaster 323.10.40.40.04.001 Specialities 2012 Olympic Games Collection Blue Red Hands | Good Condition | Serviced| 2200$

Omega - 323.10.40.40.04.001 · $2,200

This Omega Speedmaster features a white dial with red and blue hands, part of the 2012 Olympic Games Collection.

Condition: Good Condition
Case size: 39mm
Crystal type: Sapphire
Lug width: 20mm

Posted at

May 25, 2026, 12:15 PM

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Memorial Day Weekend Sale – Omega Speedmaster Professional 3861 Sapphire (2022) – Full Set – Original Clasp + Micro-adjust Clasp – $6295 + shipping

Omega - 3861 · $6,295

The modern Speedmaster features the METAS-certified 3861 movement and comes in a full set including both the newer micro-adjust clasp and original clasp.

Condition: Excellent with light signs of wear
Case material: Sapphire
Movement certification: METAS-certified

Posted at

May 25, 2026, 11:21 AM

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2025 Omega Speedmaster Moonwatch Professional White 42mm 310.30.42.50.04.001 — Excellent Condition, Box & Papers

Omega - 310.30.42.50.04.001 · $7,500

The Omega Speedmaster Moonwatch Professional White features a striking white lacquered dial, classic asymmetrical case, and manually wound chronograph movement. It measures 42mm in diameter and comes complete with its original box and papers.

Condition: Excellent condition with minor signs of wear on clasp and case
Case size: 42mm diameter
Lug to lug length: 47.5mm
Thickness: 13.2mm

Posted at

May 25, 2026, 9:30 AM

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