Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet

Reference 310.30.42.50.01.001

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is a masterpiece that combines timeless elegance with modern technology. Founded in 1848, Omega has been a pillar in the world of horology, synonymous with precision and innovation. From its stunning design to its robust functionality, it encapsulates the spirit of adventure and precision that Omega is known for. The Speedmaster line has always been a favorite, and the 3861 model is no exception. With a diameter of 42 mm, the stainless steel case provides both durability and a polished aesthetic. The tachymeter bezel allows for speed calculations over a known distance, making it not just a pretty face but a functional tool. At the heart of the Speedmaster Professional Moonwatch is the Omega Caliber 3861, a hand-wound movement that's a modern upgrade from previous models, incorporating a co-axial escapement and a silicon balance spring. The craftsmanship is evident in the intricate details of the movement, which you can admire through the closed case back.

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MSRP: $7,000

Market Price: $5,141

Key Features

Stainless steel case with black matte finish
42 mm diameter for a refined yet statement-making size
Plexi glass for added durability and shock resistance
Master Chronometer certification by METAS for accuracy and reliability
Hand-wound Omega Caliber 3861 movement with co-axial escapement and silicon balance spring
Chronograph function with small seconds, hours, and minutes
Water resistance of 50 meters for everyday wear

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet

Reference

310.30.42.50.01.001

Movement

3861

Movement Features

Small Seconds, Hours, Minutes
Chronograph
Chronometer

Case

Stainless Steel 42mm

Dial Color

Black

Crystal

Plexi

Water Resistance

Current Listings

Omega Speedmaster Professional Moonwatch "Sapphire Sandwich" 310.30.42.50.01.002 Brand New Fully Stickered / Triple Boxed

Omega - 310.30.42.50.01.002 · $8,199

The Omega Speedmaster Professional Moonwatch 'Sapphire Sandwich' is a black dial chronograph with sapphire crystal front and back, featuring the iconic tachymeter bezel and trio of subdials. The exhibition caseback shows off the Master Chronometer certified caliber 3861 movement. This watch maintains the asymmetrical lug design and twisted lugs that protect the chronograph pushers.

Condition: Brand new - fully stickered
Case size: 42mm
Bracelet type: Five-link stainless steel

Posted at

Jan 20, 2026, 8:26 PM

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2023 Steel Bracelet Omega Speedmaster 38MM 324.30.38.50.06.001 Box and Papers

Omega - 324.30.38.50.06.001 · $4,200

This is a 2023 Steel Speedmaster 38MM Grey dial watch with features such as chronometer, date at 6 O'clock, and water resistance up to 100 Meters.

Condition: Excellent
Movement: Omega 3330
Power Reserve: 52 hours
Crystal: Scratch resistant Sapphire Crystal

Posted at

Jan 20, 2026, 11:21 AM

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Omega Speedmaster Automatic Chronograph Date — Ref. 3211.30.00 | Cal. 1164 COSC — $1,999 + Shipping

Omega - 3211.30.00 · $1,999

This listing appears to be for an Omega Speedmaster Automatic Chronograph Date with reference number 3211.30.00, featuring Calibre 1164 and COSC certification.

Posted at

Jan 20, 2026, 8:34 AM

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Omega Speedmaster 3861 Sapphire Sandwich 3861 Quick Adjust Bracelet with extras!

Omega - 3861 · $6,500

A 2022 Omega Speedmaster 3861 on warranty card with extras such as a new quick adjust clasp, old clasp, and extra links for sizing.

Condition: Good condition
Warranty status: On warranty
Bracelet type: Quick adjust clasp
Lugs condition: Show strap change wear

Posted at

Jan 20, 2026, 1:52 AM

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Omega Speedmaster Date 32105000 Full Set

Omega - 3210.50.00 · $2,450

For sale is a Omega Speedmaster Date, reference 3210.50.00, a versatile and highly wearable take on the iconic Speedmaster line.

Condition: Very good overall condition with light, honest wear
Case size: 40mm diameter
Movement: Omega Caliber 1164 automatic chronograph
Functions: Chronograph, running seconds, date at 3 o'clock

Posted at

Jan 20, 2026, 12:25 AM

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🔥OMEGA SPEEDMASTER SAPPHIRE SANDWICH 310.30.42.50.01.002 COMPLETE 1/2026 BRAND NEW/UNWORN🔥

OMEGA - 310.30.42.50.01.002 · $7,500

This is a brand new, unworn Omega Speedmaster Sapphire Sandwich watch with a beautiful black dial and stainless steel case.

Condition: BRAND NEW/UNWORN
Case material: Stainless Steel
Case size: 42mm diameter

Posted at

Jan 19, 2026, 8:20 PM

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Omega Speedmaster. Broadarrow. Automatic. Gorgeous Dial. Blue Hands, Indices. Strong Lume.

Omega - 3551.20 · $3,550

This Omega Speedmaster features a broadarrow dial, automatic movement, and blue hands and indices with strong lume.

Shipping: Fedex with insurance

Posted at

Jan 19, 2026, 7:31 PM

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Omega Speedmaster Pilot 332.10.41.51.01.002

Omega - 332.10.41.51.01.002 · $8,000

The Omega Speedmaster Pilot is a new, unworn watch still in its original packaging with stickers intact.

Year: 2025
Status: new/unworn

Posted at

Jan 19, 2026, 7:16 PM

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2025 Omega Moonwatch Professional Speedmaster Sapphire Sandwich. Full set! Near New! 310.30.42.50.01.002

Omega - 310.30.42.50.01.002 · $6,950

A 2025 Omega Moonwatch Professional Speedmaster Sapphire Sandwich, considered a classic collectors piece with very light hairlines on the clasp. It's been worn only three times and comes with all original packaging.

Condition: Near New
Worn: 3 times
Retail price now: 9k

Posted at

Jan 19, 2026, 1:25 PM

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