Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink / Alligator

Reference 310.23.42.50.99.001

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink / Alligator

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is a masterpiece of horology that seamlessly blends heritage, luxury, and modern technology. Its stunning pink sunburst dial radiates warmth and elegance, while the Sedna gold accents harmonize beautifully with the stainless steel case. The chronograph function is easily accessible, making it practical for everyday use. At its heart beats the Omega Caliber 3861 movement, featuring a co-axial escapement and silicon balance spring. This timepiece is not just a watch; it's a statement of sophistication and style that pairs well with both formal and casual attire.

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Key Features

Omega Caliber 3861 movement
Sedna gold accents
Stainless steel case
Tachymeter bezel
Water resistance up to 50 meters
42mm diameter
Co-axial escapement and silicon balance spring

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink / Alligator

Reference

310.23.42.50.99.001

Movement

3861

Movement Features

Small Seconds, Hours, Minutes
Chronograph
Chronometer

Case

42mm

Dial Color

Pink

Crystal

Sapphire

Water Resistance

Current Listings

Omega Speedmaster DSOTM - Vintage Edition

Omega - 311.92.44.51.01.006 · $6,600

This Omega Speedmaster Dark Side of the Moon Vintage Edition is a rare and no longer made version, featuring a black ceramic case with good specifications including a +0s/day accuracy.

Condition: Nearly perfect
Case Diameter: 44mm
Lug To Lug: 49mm
Weight: 99 grams

Posted at

Feb 8, 2026, 4:34 PM

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Omega Speedmaster 145.022-69 Pre-Moon

Omega - 145.022-69 · $5,000

A pre-moon Omega Speedmaster in great shape with a faded bezel and factory crystal.

Condition: Pre-owned, some servicing required
Case shape: round
Dial color: black
Bracelet included: yes

Posted at

Feb 8, 2026, 2:43 PM

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Omega 310.63.42.50.10.001 Gold Speedmaster Moonwatch

Omega - 310.63.42.50.10.001 · $18,600

A gold Omega Speedmaster Moonwatch with a beautiful green dial and bezel, and an incredible exhibition caseback.

Condition: Excellent near mint condition
Case size: 42mm diameter
Warranty expiration date: December 26, 2025

Posted at

Feb 8, 2026, 1:42 PM

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310.30.42.50.01.002 Omega Sapphire Speedmaster 2025 | Complete Box & Papers | $6,699 shipped

Omega - 310.30.42.50.01.002 · $6,699

This is the current-generation sapphire sandwich reference Omega Speedmaster Professional featuring the classic black dial on a stainless steel bracelet and the updated Caliber 3861 movement. The watch comes complete with original inner and outer boxes, booklet, and warranty card.

Condition: Excellent overall condition, with a few light marks on the case and minor hairlines on the bracelet.
Case size: 42mm
Movement: Manual-wind Caliber 3861 (Master Chronometer)
Crystal: Sapphire (front & display caseback)

Posted at

Feb 8, 2026, 1:35 PM

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2025 Unworn Omega Speedmaster 38mm Cappuccino Sedna Gold With Factory Diamonds 324.28.38.50.02.002 Just In Time For Valentines! $9,495

Omega - 324.28.38.50.02.002 · $9,495

This listing features a brand new Omega Speedmaster, ideal for Valentine's Day.

Condition: Unworn
Diameter: 38mm

Posted at

Feb 8, 2026, 10:58 AM

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Omega Speedmaster Racing Cart

Omega - 3510.80 · $3,899

This Omega Speedmaster Racing Cart Edition features a 39mm case in excellent condition, including original box, card, authentication papers, and extra links.

Condition: Mint
Case size: 39mm

Posted at

Feb 7, 2026, 8:16 PM

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Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega - 145.022-78 · $5,050

This Omega Speedmaster Professional Moonwatch is a well-preserved and reliable example of the Speedmaster Moonwatch, featuring a black tritium dial with even yellow patina across all hour markers.

Condition: Very good overall shape, all-original condition
Case size: 42mm
Year: 1978
Movement serviced: February 2026

Posted at

Feb 7, 2026, 5:24 PM

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Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Omega - 311.93.44.51.99.001 · $7,700

Up for sale is an Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm watch that functions perfectly mechanically.

Condition: Great condition, small chip on edge of case back
Case Size: 44mm diameter
Case Back Condition: small chip at 9-o'clock

Posted at

Feb 7, 2026, 11:30 AM

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BNIB 2026 Omega Speedmaster Moonwatch Professional White $7,999

Omega - 310.30.42.50.04.001 · $7,999

The Omega Speedmaster Moonwatch Professional features a glossy white lacquered dial, black markers, and red 'Speedmaster' text. It uses the updated 3861 movement with a sapphire crystal for a more modern look.

Condition: Brand new in box with no issues
Case size: 42mm
Case thickness: 13.2mm
Lug width: 20mm

Posted at

Feb 7, 2026, 11:13 AM

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