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 Co-axial Chronograph | Ref: 324.30.38.50.01.001 | w/ Box & Papers | $4200

Omega - 324.30.38.50.01.001 · $4,200

This Omega Speedmaster Co-axial Chronograph is a high-end watch that features a chronograph function, making it ideal for those who need to measure elapsed time.

Box: included
Papers: included

Posted at

May 27, 2026, 6:26 PM

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Omega Speedmaster Chronoscope Co-Axial Master Chronometer Chronograph | Ref. 329.30.43.51.02.002 | w/ Box & Papers | $6300

Omega - 329.30.43.51.02.002 · $6,300

a Omega Speedmaster Chronoscope Co-Axial Master Chronometer Chronograph is listed for sale.

Posted at

May 27, 2026, 6:06 PM

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Omega Speedmaster Professional 42MM White - Ref 310.30.42.50.04.001 (LIKE NEW 2025 COMPLETE SET W/ CASEBACK STICKER)

Omega - 310.30.42.50.04.001 · $7,400

A 42MM Omega Speedmaster Professional White, in pristine condition with its original caseback sticker intact and dated warranty card from 2025.

Condition: like new
Case diameter: 42mm
Depth rating: 30m

Posted at

May 27, 2026, 4:18 PM

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Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit - Fresh Service

Omega - 310.30.42.50.01.002 · $6,595

The Omega Speedmaster Professional features a sapphire crystal front and display caseback, showcasing the Omega movement.

Condition: Near like-new, lightly pre-owned
Case size: 42mm
Water resistance: not specified

Posted at

May 27, 2026, 4:15 PM

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Omega Speedmaster Reduced Reverse Panda 1993 Ref 3511.50

Omega - 3511.50 · $1,950

A 1993 Omega Speedmaster Reduced sold as a pre-owned item, with the original box but no papers.

Condition: Used with damage to the bezel
Year of manufacture: 1993
Papers: No papers included

Posted at

May 27, 2026, 3:02 PM

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2024 Omega Speedmaster Moonwatch Professional White Dial 310.30.42.50.04.001 Box and Papers

Omega - 310.30.42.50.04.001 · $7,277

This is a 2024 Omega Speedmaster Moonwatch Professional with a white dial and reference number 310.30.42.50.04.001. It features an excellent condition case, bracelet, and clasp.

Condition: Excellent condition with minimal signs of wear
Case size: 42mm diameter
Water resistance: 50m water resistant
Warranty: 5 year warranty remaining

Posted at

May 27, 2026, 1:41 PM

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Omega Speedmaster Moonphase 304.33.44.52.01.001

Omega - 304.33.44.52.01.001 · $7,350

This Omega Speedmaster features a moonphase complication, chronograph, and automatic co-axial movement 9904.

Condition: Good pre-owned condition
Size: 44.25mm diameter
Movement: Automatic co-axial movement 9904
Strap: Omega leather strap

Posted at

May 27, 2026, 10:18 AM

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Omega Speedmaster Reduced Ref. 3510.50 | Early Tritium Dial Variant | $2700 (SERVICED)

Omega - 3510.50 · $2,700

The Omega Speedmaster Reduced Ref. 3510.50 is a compact 39mm automatic watch with an early tritium dial variant, carrying the classic black dial, tachymeter bezel, and chronograph layout.

Condition: Great condition with some use and minor scratches
Diameter: 39mm diameter
Thickness: 14mm thickness
Lug-to-lug: 44mm lug-to-lug length

Posted at

May 27, 2026, 10:03 AM

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