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 Moonwatch Professional 310.30.42.50.01.002 "Sapphire Sandwich."

Omega - 310.30.42.50.01.002 · $5,450

The Omega Speedmaster Moonwatch Professional, also known as the 'Sapphire Sandwich', is a modern iteration of the timepiece that went to the moon. It features a sapphire crystal front and caseback, redesigned bracelet, and Co-Axial Master Chronometer movement.

Condition: Excellent
Case material: Sapphire crystal front and caseback
Bracelet condition: Excellent
Movement: Co-Axial Master Chronometer

Posted at

Jan 12, 2026, 4:55 PM

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LNIB 3 Month Old Omega Speedmaster Pro Sapphire

Omega - Speedmaster Pro Sapphire Sandwhich · $7,300

This listing is for a new Omega Speedmaster Pro Sapphire Sandwhich watch. It has been worn for only three months and shows no signs of wear or scratches, with all original packaging and accessories included.

Condition: New condition, lightly used for 3 months
Age: 3 months old
Size: Assuming standard watch size (no specific details given)

Posted at

Jan 12, 2026, 4:05 PM

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Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Omega - 311.92.44.30.01.001 · $7,850

Additional Details: Omega SpeedMaster Dark Side of the Moon with a full-ceramic case and buckle.

Condition: Mint, like-new
Case material: full ceramic
Year: 2019

Posted at

Jan 12, 2026, 2:45 PM

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20mm Omega Speedmaster Bracelet 1499 / 842 – Production (1996–1998)

Omega - 1499 / 842 · $495

A high-quality Omega factory bracelet option with excellent build and taper, known among Speedmaster collectors.

Production Period: 1996-1998
Wrist Size Fit: 7 3/4 inches

Posted at

Jan 12, 2026, 1:09 PM

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PRICE DROP: Omega Speedmaster White Dial Full Set

Omega - 310.30.42.50.04.001 · $7,400

A Omega Speedmaster White Dial full set, including a flat link bracelet honoring the original Speedmaster from 1957.

Bracelet style: flat link, honoring original 1957 Speedmaster
Clasp condition: some snail trails

Posted at

Jan 12, 2026, 12:18 PM

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Omega Speedmaster Moonphase 304.33.44.52.03 Blue Dial 44.25mm Full Set

Omega - 304.33.44.52.03

This listing is for an Omega Speedmaster Moonphase with a blue dial and 44.25mm case size.

Diameter: 44.25mm

Posted at

Jan 12, 2026, 10:17 AM

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[US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

Omega - 3551.20.00 · $4,125

An Omega Speedmaster Broad Arrow with a white dial and 42mm case, available in full set with box and papers.

Condition: Fantastic condition with minor hairlines on bracelet, case, and clasp
Case Size: 42mm diameter
Year: 2006

Posted at

Jan 12, 2026, 8:06 AM

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Omega Speedmaster Pilot | 2025

Omega - 332.10.41.51.01.002 · $7,500

This Omega Speedmaster Pilot is the recently released flight qualified version of the Speedmaster, featuring an automatic caliber 9900 movement and sapphire crystal.

Condition: Excellent
Case size: 40.85mm
Case material: Steel
Bracelet material: Steel

Posted at

Jan 11, 2026, 8:01 PM

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2023 Omega Speedmaster Moonphase Sedna (Rose) Gold / Brown Dial

Omega - 304.23.44.52.13.001 · $9,848

This Omega Speedmaster Moonphase features a sophisticated evolution of the legendary Speedmaster with classical complications and modern Omega innovation, crafted in 18k Sedna Gold with a beautifully finished brown sun-brushed dial.

Condition: excellent
Case Size: 44.25mm diameter
Case Material: 18k Sedna Gold
Dial: brown sun-brushed

Posted at

Jan 11, 2026, 4:57 PM

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