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. Sapphire Sandwich. Box, Cards.

Omega - Speedmaster · $6,150

A Omega Speedmaster sapphire sandwich watch with box and cards is being sold.

Location: NJ USA

Posted at

May 1, 2026, 4:47 PM

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Omega Speedmaster 40 3211.31

Omega - 3211.31 · $2,175

A used Omega Speedmaster 40mm model 3211.31, featuring a minor scratch on the crystal.

Condition: Minor scratch on crystal
Bracelet length: 7 inches

Posted at

May 1, 2026, 3:33 PM

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Omega Speedmaster Professional. Moonwatch. 3570.50. Very nice condition...

Omega - 3570.50 · $4,100

This Omega Speedmaster Professional Moonwatch is a high-end timepiece with a rich history and design.

Condition: Very nice condition
Location: NJ USA
Shipping: included

Posted at

May 1, 2026, 3:30 PM

Active

View listing on r/WatchExchange

🚀🌗Brand New 2026 Full Set - Omega Speedmaster Moonphase Reference: 304.30.44.52.01.001 🚀🌗

Omega - 304.30.44.52.01.001 · $10,995

This listing is for a brand new Omega Speedmaster Moonphase watch, full set with warranty card, double box, and other included items.

Condition: Brand New
Bracelet length: fully linked

Posted at

May 1, 2026, 1:49 PM

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Omega OEM Integrated Speedmaster Moonwatch Rubber Straps - One with OEM Clasp - One Without Clasp (Both Backordered thru Omega)

Omega - 032Z017245, STZ007387 · $275

Additional details are about Omega OEM integrated Speedmaster Moonwatch rubber straps, one with an OEM clasp and one without.

Condition: Very Good
Clasp type: stainless steel deployant clasp (16mm)
Lug size: 20mm
Condition of strap 1: with clasp

Posted at

May 1, 2026, 1:32 PM

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Omega Speedmaster 323.10.40.40.04.001 Specialities 2012 Olympic Games Collection Blue Red Hands | Good Condition | Serviced| 2100$

Omega - 323.10.40.40.04.001 · $2,100

This Omega Speedmaster features a white dial with blue and red hands, making it an eye-catching piece.

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

Posted at

May 1, 2026, 11:42 AM

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Omega Speedmaster Date 38.5mm 3513.54

Omega - 3513.54 · $1,550

For sale is an Omega Speedmaster Date 38.5mm reference number 3513.54, the watch is in good condition.

Condition: good condition with small normal wear
Year: 1998
Case size: 38.5mm

Posted at

May 1, 2026, 11:05 AM

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Omega Speedmaster Racing 326.30.40.50.03.001

Omega - 326.30.40.50.03.001 · $2,350

This Omega Speedmaster Racing is available for sale in excellent working order, and its condition allows it to be barely noticeable despite having some slight wear.