Omega Speedmaster Speedmaster Professional Moonphase / Strap

Reference 3876.50.31

Omega Speedmaster Professional Moonphase / Strap

About this watch

The Omega Speedmaster Professional Moonphase is an exquisite blend of precision, technology, and style, boasting a storied history in horology. With its classic yet sporty design, this watch exudes sophistication, featuring a black dial highlighted by the stainless steel case. The stick and dot indexes provide excellent visibility, while the moonphase complication adds a touch of elegance to its sporty demeanor. At its heart lies the Omega caliber 1866, a handwound chronograph movement renowned for precision and reliability. With a power reserve of 45 hours, it's designed to withstand daily wear and tear, making it an excellent choice for both men and women. The watch's durability is further enhanced by its sapphire crystal, ensuring that the beauty of the dial remains unblemished over time. Water-resistant up to 50 meters, this watch is suitable for splashes and brief immersions in water. Whether you're a collector, space enthusiast, or simply looking for a reliable timepiece, the Speedmaster Professional Moonphase ticks all the boxes, offering a perfect blend of functionality, style, and history.

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MSRP: $5,900

Market Price: $5,287

Key Features

Omega Caliber 1866 Handwound Chronograph Movement
42mm Stainless Steel Case with Tachymeter Bezel
Sapphire Crystal for Scratch-Resistant Durability

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonphase / Strap

Reference

3876.50.31

Movement

1866

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph
Moonphase

Case

Stainless Steel 42mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

Current Listings

Omega Speedmaster ’57 Gold on Leather Strap 2025 MINT FULL 331.22.42.51.01.001

Omega - 331.22.42.51.01.001 · $6,999

The Omega Speedmaster Co-Axial Chronograph is a luxurious everyday chronograph with serious pedigree, blending legendary heritage with refined execution.

Condition: Mint, minimal signs of wear
Case Size: 41.5 mm diameter
Thickness: 16.17 mm
Lug To Lug: 50 mm

Posted at

Mar 8, 2026, 10:36 PM

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Omega Speedmaster Professional 3570.50.00 (Hesalite) 1861 cal

Omega - 3570.50.00 · $3,999

Selling an Omega Speedmaster Professional 3570.50.00 (Hesalite) 1861 cal watch in good condition, with a full service at Omega AD in 2022 and original papers from the first owner.

Condition: good condition
Year of purchase: 2014
Bracelet condition: has scratches on clasp area due to typing on a laptop
Additional accessories: extra NATO strap

Posted at

Mar 8, 2026, 9:34 PM

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Omega Speedmaster METAS 3861 Sapphire Sandwich - Mint - 2023 (under Omega warranty until 2028) - Latest Version With Quick Adjust Clasp - Full Kit

Omega - 3861 · $6,900

This Omega Speedmaster Moonwatch is a full kit dated May 2023, under warranty until May 2028. It has some minor scratches on the clasp but runs flawlessly and is in great condition.

Condition: Mint with desk dive scratches on the clasp
Year of manufacture: 2023
Warranty expiration year: 2028
Case condition: Mint

Posted at

Mar 8, 2026, 8:54 PM

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Omega Speedmaster Mark II. 327.10.43.50.01.001.

Omega - 327.10.43.50.01.001 · $3,395

This Omega Speedmaster Mark II is a large watch that fits comfortably on the wrist, with additional details and photos available upon request.

Condition: Very good condition
Size: 41mm diameter
Location: New Jersey, USA

Posted at

Mar 8, 2026, 3:17 PM

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Omega Speedmaster. Moonwatch + Moonphase. Sapphire Sandwich.

Omega - Speedmaster Moonwatch Sapphire Sandwich · $4,950

The watch is an Omega Speedmaster, also known as a Moonwatch, featuring a sapphire sandwich case.

Condition: Very clean
Location: New Jersey, USA

Posted at

Mar 8, 2026, 3:14 PM

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Omega Speedmaster 3570.50-$4200

Omega - 3570.50 · $4,200

The Omega Speedmaster 3570.50 is a model that comes watch only with original band and Forstner band. It's suitable for everyday wear.

Condition: Good condition with some normal signs of wear
Band Count: 2
Seller Experience: Yes, several sales on AWWC, SBWC, Resco, and eBay

Posted at

Mar 8, 2026, 2:58 PM

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Omega Speedmaster 3861 Sapphire Sandwich - Minty - May 2023 Card (under Omega warranty until 2028) - Quick Adjust Bracelet - Full Kit

Omega - 3861 · $6,999

A 2023 Omega Speedmaster Moonwatch 3861 sapphire sandwich, in great condition with a full kit and under warranty until 2028. The watch is running accurately at 0 spd.

Condition: great condition with minor desk dive scratches on the clasp
Warranty expiration date: May 2028
Retail price: $9K

Posted at

Mar 8, 2026, 2:04 PM

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