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

Reference 310.23.42.50.99.001

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.
Buy Now on Jomashop
This is an affiliate link

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
50

Current Listings

[WTS] Omega Speedmaster Racing Chronograph Silver Dial Watch 326.30.40.50.02.001 Complete Set

Omega Speedmaster Racing Chronograph Silver Dial Watch 326.30.40.50.02.001 Complete Set

The Omega Speedmaster Racing features a silver white dial, stainless steel case and bracelet, and chronograph movement, making it a striking and fresh take on the classic Moonwatch profile.

  • Condition: Excellent
  • Case Size: 40mm diameter
  • Movement Type: chronograph
Posted at
Jan 21, 2026, 3:06 PM
Active
[WTS] Omega Speedmaster Black Fabric Strap

Omega Speedmaster Black Fabric Strap

Omega - CWZ014117 · $240
A black fabric strap for the Omega Speedmaster Pro watch, available for sale with free shipping.

  • Condition: like new, never worn
  • Width: 20/16mm
Posted at
Jan 21, 2026, 10:32 AM
Active
[WTS] Omega Speedmaster Professional Moonwatch "Sapphire Sandwich" 
310.30.42.50.01.002 Brand New Fully Stickered / Triple Boxed

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

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
Active
2023 Steel Bracelet Omega Speedmaster 38MM 324.30.38.50.06.001 Box and Papers [WTS]

2023 Steel Bracelet Omega Speedmaster 38MM 324.30.38.50.06.001 Box and Papers

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

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
Active
[WTS] Omega Speedmaster 3861 Sapphire Sandwich 3861 Quick Adjust Bracelet with extras!

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
Active
[WTS] Omega Speedmaster Date 32105000 Full Set

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
Active
[WTS]🔥OMEGA SPEEDMASTER SAPPHIRE SANDWICH 310.30.42.50.01.002 COMPLETE 1/2026 BRAND NEW/UNWORN🔥

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

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
Active
[WTS] Omega Speedmaster. Broadarrow. Automatic. Gorgeous Dial. Blue Hands, Indices. Strong Lume.

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
Active