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.
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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
50

Current Listings

[WTS] OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$16,000🔥

OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$16,000🔥

OMEGA - 311.30.40.30.01.001 · $16,000
The OMEGA Speedmaster Calibre 321 Ref. 311.30.40.30.01.001 is a faithful recreation of the reference 105.003, famously worn by astronaut Ed White during America's first spacewalk.

  • Condition: UNWORN
  • Movement: Calibre 321 column-wheel chronograph movement
  • Case size: 39.7mm diameter
  • Bezel material: black ceramic
Posted at
Mar 6, 2026, 8:15 PM
Active
[wts] 2025 UNWORN OMEGA SPEEDMASTER WHITE DIAL
310.30.42.50.04.001 $7799

2025 UNWORN OMEGA SPEEDMASTER WHITE DIAL 310.30.42.50.04.001 $7799

2025 Omega Speedmaster with a white dial for sale.

  • Condition: Unworn
  • Dial color: white
Posted at
Mar 6, 2026, 7:32 PM
Active
[WTS] Omega Speedmaster "The One That Actually Fits" – Serviced, & Sharp  ref 3510.50

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Omega - 3510.50 · $2,200
This Omega Speedmaster 'Reduced' model features a Triple Date layout and is known for its vintage charm, clean dial, and sharp lugs.

  • Condition: Excellent / Serviced 2025
  • Movement Type: Automatic
  • Bracelet: Original steel with additional links
  • Shipping Location: New York City
Posted at
Mar 6, 2026, 5:51 PM
Active
[WTS] OMEGA Speedmaster Racing 329.30.44.51.04.001 2022 Full Set

OMEGA Speedmaster Racing 329.30.44.51.04.001 2022 Full Set

This Omega Speedmaster Racing is a complete set with inner and outer boxes, manual, COSC card, warranty card, and hang tag.

  • Condition: Excellent
  • Warranty Expiration: May 2027
  • Size: for 7.5” wrist
Posted at
Mar 6, 2026, 4:31 PM
Active
[WTS] Omega Speedmaster 3511.50 Reverse Panda JAPAN EDITION

Omega Speedmaster 3511.50 Reverse Panda JAPAN EDITION

Omega - 3511.50 · $2,150
For sale is an Omega Speedmaster Reduced 3511.50, running great and all functions work properly.

  • Condition: great condition with light signs of wear
Posted at
Mar 6, 2026, 4:01 PM
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[WTS] OMEGA SPEEDMASTER 145.022-69 PREMOON

OMEGA SPEEDMASTER 145.022-69 PREMOON

OMEGA - 145.022-69 · $6,000
A charming vintage chronograph with a great dial and original DO90 bezel, sold with an original Omega bracelet.

  • Condition: Pre-owned, with signs of wear
  • Bracelet type: Original 1039
  • Clasp type: Omega clasp
Posted at
Mar 6, 2026, 3:05 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

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

Omega - 145.022-78 · $5,050
This Omega Speedmaster Professional Moonwatch features a black tritium dial with even yellow patina and is presented in its original state with period-correct details.

  • Condition: Very good overall shape, original condition with some polishing on the case
  • Year: 1978
  • Size: 42mm diameter
Posted at
Mar 6, 2026, 10:46 AM
Active