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 Ref. 3510.50

Omega Speedmaster Ref. 3510.50

The Omega Speedmaster Ref. 3510.50 is being listed for sale.

Posted at
Apr 17, 2026, 4:26 PM
Active
[WTS] Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega - 105.003-65 · $9,850
This Omega Speedmaster Ed White Ref. 105.003-65 is a historically significant watch with a stunning brown tropical dial and matching tritium hands that glow under UV light. It's one of the most collectible variants among Speedmaster enthusiasts, featuring strong proportions and a well-preserved stainless steel case.

  • Condition: good condition
  • Case size: 39mm diameter
  • Year produced: 1965
  • Movement serviced: yes, in July 2025
Posted at
Apr 17, 2026, 1:06 PM
Active
[wts] 2026 Omega Dark Side of The Moon Apollo 8 Speedmaster w/ Rocketship
310.92.44.50.01.001
$12,499

2026 Omega Dark Side of The Moon Apollo 8 Speedmaster w/ Rocketship 310.92.44.50.01.001 $12,499

Omega - 310.92.44.50.01.001 · $12,499
This 2026 Omega Dark Side of The Moon Apollo 8 Speedmaster is a high-end timepiece featuring a black ceramic case, black dial, and sapphire crystal. It has a 50-hour power reserve and is water-resistant up to 50m.

  • Condition: Excellent preowned condition, 9.9/10
  • Case size: 44.25mm diameter
  • Movement: 3869 caliber movement
  • Power reserve: 50 hours
Posted at
Apr 17, 2026, 12:52 PM
Active
[WTS] Omega Speedmaster Date 38.5mm 3513.54

Omega Speedmaster Date 38.5mm 3513.54

Omega - 3513.54 · $1,675
This Omega Speedmaster Date is a 38.5mm watch from 1998 in good condition, with signs of wear but no major marks.

  • Condition: good condition with some wear
  • Year: 1998
  • Size: 38.5mm
  • Functions: running great and functions properly
Posted at
Apr 17, 2026, 12:09 PM
Active
[WTS] Omega Speedmaster Racing 326.30.40.50.03.001

Omega Speedmaster Racing 326.30.40.50.03.001

This Omega Speedmaster Racing is a high-end sports watch designed for performance and style.

  • Condition: great condition with some light wear
  • Water Resistance: 30m (no data found for depth rating)
  • Size: 40mm diameter
Posted at
Apr 17, 2026, 12:07 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 Omega Buckle

Omega Speedmaster Reduced 3510.50 Omega Buckle

Omega - 3510.50 · $2,075
For sale is an Omega Speedmaster Reduced in great condition with a nice patina on the dial.

  • Condition: great condition with some patina on the dial and wear on the strap and clasp
  • Band type: leather
  • Buckle type: Omega original
Posted at
Apr 17, 2026, 12:05 PM
Active
[WTS] Omega Speedmaster Hesalite 2023, $5700

Omega Speedmaster Hesalite 2023, $5700

This Omega Speedmaster Hesalite is a recent model, released in 2023, featuring a Preowned Condition with its original box and warranty.

  • Condition: Preowned
  • Shipping cost: $100 for USA
  • Payment options: Wire or Credit Card (+4.9% & 4 days clearance)
  • Warranty included: 2023 warranty
Posted at
Apr 17, 2026, 10:24 AM
Active
[WTS][US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set

[US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set

Omega - 311.30.40.30.01.001 · $15,700
Up for sale is an Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - Full Set, functions perfectly mechanically without issue.

  • Condition: pristine condition with minor hairlines on clasp, case, and bracelet
  • Case size: 39.7mm
  • Bracelet condition: pristine condition with minor hairlines on clasp, case, and bracelet
Posted at
Apr 17, 2026, 6:20 AM
Active
[WTS][US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set

[US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set

Up for sale is an Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set Watch is in pristine condition and functions perfectly mechanically, without issue.

  • Condition: pristine with minor hairlines on clasp, case, and bracelet
  • Case size: 42mm diameter
Posted at
Apr 17, 2026, 6:14 AM
Active