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

2023 Omega Speedmaster Moonphase Blue Side of the Moon 304.93.44.52.03.001 Full Set - $9,395

Omega - 304.93.44.52.03.001 · $9,395

This Omega Speedmaster Moonwatch - Blue Side of the Moon is a 2023 model, featuring a moonphase complication.

Condition: Excellent condition with minimal signs of wear
Year: 2023
Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Master Chronometer Card, Instructions Manual

Posted at

May 21, 2026, 7:42 PM

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2020 Omega Speedmaster Moonphase Black 304.30.44.52.01.001 Full Set - $7,995

Omega - 304.30.44.52.01.001 · $7,995

Up for sale is a Omega Speedmaster Moonphase Black watch, a 2020 model. It has been thoroughly tested and is running well without the need for service.

Condition: Excellent condition with minimal signs of wear
Year: 2020
Contents: watch, inner & outer box, card holder, international warranty card, pictograms card, master chronometer card, instructions manual

Posted at

May 21, 2026, 7:40 PM

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Omega Speedmaster Alaska Project 2008, $22k

Omega - Speedmaster Alaska Project 2008 · $22,000

This Omega Speedmaster Alaska Project 2008 is being sold with its original box, warranty, and manuals. It was mostly worn on a NATO strap, leaving the bracelet largely unworn.

Condition: Preowned
Shipping: free for USA, additional cost for bulkier/heavier boxes
Payment methods: Wire or Credit Card (+4.9% & 4 days clearance)
Condition of bracelet: largely unworn

Posted at

May 21, 2026, 11:07 AM

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Omega Speedmaster Triple Date Blue Sunburst Dial Ref. 3523.80.00 | $2,299 Shipped

This Omega Speedmaster Triple Date features a deep sunburst blue dial, steel tachymeter bezel, and full triple-calendar layout.

Posted at

May 21, 2026, 11:05 AM

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Omega Speedmaster Date Chronometer 3212.80.00 Blue Dial | Full Set, Fresh Service | $2,599 Shipped

Omega - 3212.80.00 · $2,599

A Speedmaster Date Chronometer with a blue dial, this listing mentions it is full set and has been recently serviced.

Dial color: blue
Service status: fresh service

Posted at

May 21, 2026, 10:37 AM

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OMEGA Speedmaster Date 40mm 18k Bezel Full Kit

OMEGA - 323.21.40.40.02.001 · $3,400

Omega Speedmaster Date in good condition, 40mm steel/yellow gold case.

Condition: good
Material: steel/yellow gold
Case diameter: 40mm

Posted at

May 21, 2026, 10:34 AM

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Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 Sapphire Sandwitch

Omega - 310.30.42.50.01.002 · $6,400

The Omega Speedmaster Professional Moonwatch, also known as the Sapphire Sandwich, features a timeless black dial and is powered by the updated Omega Caliber 3861 Master Chronometer movement.

Condition: Excellent pre-owned condition
Case size: 42mm diameter
Dial color: black
Crystal type: sapphire (front & exhibition caseback)

Posted at

May 21, 2026, 2:09 AM

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Omega Speedmaster Racing White Dial 329.33.44.51.04.001 Co-Axial Master Chronometer Full Set $7495

Omega - 329.33.44.51.04.001 · $7,495

The Omega Speedmaster Racing Master Chronometer features a white 'racing dial' and is powered by the Caliber 9900 Co-Axial Master Chronometer movement.

Condition: Excellent, pre-owned with light wear consistent with careful use
Case diameter: 44.25mm
Depth rating: 50m
Movement: Omega Caliber 9900 (Master Chronometer certified)

Posted at

May 20, 2026, 7:16 PM

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