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 38 Co-Axial Chronograph 324.30.38.50.02.001

Omega Speedmaster 38 Co-Axial Chronograph 324.30.38.50.02.001

Omega - 324.30.38.50.02.001 $3,999
This Omega Speedmaster 38 Co-Axial Chronograph features a silver dial and is in excellent overall condition with very minimal wear.

  • Condition: Excellent
  • Bracelet Condition: Brand-new, unworn
  • Included Items: Omega inner box,Omega outer box,Instruction manual,Pictograms card,Watchfinder certificate of authenticity
Posted at
Apr 11, 2026, 6:07 PM
Active
[WTS] Omega Speedmaster Professional (310.30.42.50.04.001)

Omega Speedmaster Professional (310.30.42.50.04.001)

Omega - 310.30.42.50.04.001 $7,600
This Omega Speedmaster Professional is the newest reference featuring a white dial on a steel bracelet, in excellent condition with almost no signs of wear.

  • Condition: Excellent
  • Case Size: 42mm diameter
  • Case Material: Stainless Steel
  • Bracelet Material: Stainless Steel
Posted at
Apr 11, 2026, 1:34 PM
Active
[WTS] True Collectors Set! Omega Speedmaster Day-Date "Reduced" | Black Dial Ref. 3520.50 | 39mm | Stainless Steel | Multiple Straps

True Collectors Set! Omega Speedmaster Day-Date "Reduced" | Black Dial Ref. 3520.50 | 39mm | Stainless Steel | Multiple Straps

Omega - 3520.50 $3,550
The Omega Speedmaster Day-Date features a deep black dial and a sophisticated Triple Calendar complication in a 39mm stainless steel case.

  • Condition: Excellent 9/10 Condition
  • Case size: 39mm
  • Movement type: Triple Calendar complication
  • Bracelets: Omega stainless steel bracelet, two aftermarket bracelets (FOIS and leather)
Posted at
Apr 11, 2026, 10:10 AM
Active
[WTS] OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 馃敟$10,000馃敟

OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 馃敟$10,000馃敟

OMEGA - 311.92.44.30.01.001 $10,000
The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 Ref. 311.92.44.30.01.001 commemorates the 50th anniversary of the Apollo 8 mission, a 44.25mm masterpiece crafted from black ceramic with unparalleled scratch resistance and a modern aesthetic.

  • Condition: UNWORN
  • Case material: black ceramic
  • Diameter: 44.25mm
  • Movement: Calibre 1869
Posted at
Apr 10, 2026, 9:18 PM
Active
[WTS] $1800 Omega Speedmaster

$1800 Omega Speedmaster

Omega - Speedmaster $1,800
A watch only listing for an Omega Speedmaster.

Posted at
Apr 10, 2026, 8:02 PM
Active
[WTS] 2025 OMEGA Speedmaster Calibre 321 "Ed White" - Full Set - Very Excellent

2025 OMEGA Speedmaster Calibre 321 "Ed White" - Full Set - Very Excellent

Omega - 311.30.40.30.01.001 $15,800
The Omega Speedmaster Calibre 321 'Ed White' is a highly iconic collector's piece, named after astronaut Ed White, featuring the masterfully crafted 321 Omega movement.

  • Condition: Very Excellent pre-owned condition
  • Year: 2025
  • Case size: 39.7mm diameter
  • Case material: Stainless steel
Posted at
Apr 10, 2026, 5:47 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 Omega Buckle

Omega Speedmaster Reduced 3510.50 Omega Buckle

Omega - 3510.50 $2,175
This Omega Speedmaster Reduced is a well-maintained timepiece with a nice patina on the dial, original Omega buckle, and hardly any wear on the crystal and case.

  • Condition: great condition, some wear on strap and clasp
  • Buckle type: Omega buckle
  • Payment methods accepted: crypto, cash, bank transfer etc. excluding PayPal
Posted at
Apr 10, 2026, 1:50 PM
Active
[WTS] Omega Speedmaster Racing 326.30.40.50.03.001

Omega Speedmaster Racing 326.30.40.50.03.001

Omega - 326.30.40.50.03.001 $2,650
For sale is an Omega Speedmaster Racing, a watch in great condition running great and comes as watch only.

  • Condition: great condition with some light wear
  • Payment Methods Accepted: crypto and other payment methods (with small fee)
  • Local Meet Available: yes
  • Trade Eligible Brands: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Apr 10, 2026, 1:46 PM
Active
[WTS] Omega Speedmaster Date 38.5mm 3513.54

Omega Speedmaster Date 38.5mm 3513.54

Omega - 3513.54 $1,725
For sale is an Omega Speedmaster Date 38.5mm reference number 3513.54 from 1998.

  • Condition: good condition with normal wear
  • Year Of Production: 1998
  • Case Size: 38.5mm
Posted at
Apr 10, 2026, 1:45 PM
Active