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] 2024 Omega Speedmaster 38mm Diamond Bezel Gray Dial Full Set Excellent Condition - 324.38.38.50.06.001

2024 Omega Speedmaster 38mm Diamond Bezel Gray Dial Full Set Excellent Condition - 324.38.38.50.06.001

2024 Omega Speedmaster 38mm Diamond Bezel Gray Dial Full Set, in excellent condition.

  • Diameter: 38mm
Posted at
Apr 14, 2026, 7:04 PM
Active
[WTS] New 2026 Omega Speedmaster Professional Hesalite Full Set only $6400

New 2026 Omega Speedmaster Professional Hesalite Full Set only $6400

This brand new Omega Speedmaster Professional is presented in pristine condition and comes complete with its original full set, including a factory warranty card dated 2026.

  • Condition: pristine, unworn
  • Warranty: 5-year international warranty
  • Price Comparison: list price from authorized dealer: $7800 plus tax
Posted at
Apr 14, 2026, 12:27 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 - $2,390

Omega Speedmaster Reduced 3510.50 - $2,390

Omega - 3510.50 · $2,390
Up for sale is my Omega Speedmaster Reduced 3510.50 in great condition. It features a steel case and original speedmaster bracelet.

  • Condition: great condition, minimal wear
  • Bracelet length: original
  • Box included: yes
  • Shipping: Fedex Priority Shipping from Philippines, 3-5 days globally
Posted at
Apr 14, 2026, 4:26 AM
Active
[WTS] Omega Speedmaster Reduced Automatic 3510.50 – Black Dial – $3,000

Omega Speedmaster Reduced Automatic 3510.50 – Black Dial – $3,000

a Omega Speedmaster Reduced Automatic with a black dial is for sale.

  • Dial color: Black
Posted at
Apr 14, 2026, 2:55 AM
Active
[WTS] Omega Speedmaster Triple Calendar Day-Date Ref.3221.30.00 40mm | Great Condition (With Box & Serviced) | $2400

Omega Speedmaster Triple Calendar Day-Date Ref.3221.30.00 40mm | Great Condition (With Box & Serviced) | $2400

Omega - 3221.30.00 · $2,400
The Omega Speedmaster Triple Calendar Day-Date Ref.3221.30.00 is a more feature-packed take on the classic Speedmaster, with a stainless steel case, sapphire crystal, and Caliber 3606 movement.

  • Condition: Great condition, serviced
  • Case size: 40mm diameter
  • Thickness: 15mm
  • Water resistance: 100m
Posted at
Apr 13, 2026, 11:07 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 Bracelet Set - 22 Links, Full size, 94/100 Condition, OEM 1469/811

Omega Speedmaster Reduced 3510.50 Bracelet Set - 22 Links, Full size, 94/100 Condition, OEM 1469/811

· $649
A vintage Omega Speedmaster Reduced bracelet for sale in excellent condition, featuring a stainless steel finish and an original Omega folding clasp.

  • Condition: 94/100
  • Model compatibility: Omega Speedmaster Reduced 3510.50 (18 mm lug)
  • Bracelet reference: 1469
  • Endlinks reference: 811 (pair included)
Posted at
Apr 13, 2026, 10:51 PM
Active
[WTS] 2024 MINT Omega Speedmaster Moonwatch Professional Full Set $6️⃣,5️⃣0️⃣0️⃣ + ✈️🇺🇸

2024 MINT Omega Speedmaster Moonwatch Professional Full Set $6️⃣,5️⃣0️⃣0️⃣ + ✈️🇺🇸

2024 Omega Speedmaster Moonwatch Professional Full Set, Ref. 310.30.42.50.01.002, priced to fly.

  • Shipping included in price: no
Posted at
Apr 13, 2026, 10:47 PM
Active
[WTS] Omega Speedmaster Professional Polar White

Omega Speedmaster Professional Polar White

A beautiful Omega Speedmaster Professional Polar White, a manual wind watch in excellent condition.

  • Condition: great condition with minimal wear on the case
  • Size: 42mm diameter
  • Movement: 3861 manual wind
Posted at
Apr 13, 2026, 9:17 PM
Active
[WTS] Omega Speedmaster Professional 3861 Sapphire Sandwich (12/2024) – Full Kit – Unworn Bracelet

Omega Speedmaster Professional 3861 Sapphire Sandwich (12/2024) – Full Kit – Unworn Bracelet

Up for sale is my Omega Speedmaster Professional ref. 310.30.42.50.01.002 (sapphire sandwich) with a December 2024 warranty card. This latest-generation Moonwatch features the Co-Axial Master Chronometer caliber 3861 and sapphire display caseback.

  • Condition: Excellent – minimal wear
  • Case size: 42mm
  • Crystal material: Sapphire (front + exhibition caseback)
  • Movement type: Co-Axial Master Chronometer caliber 3861
Posted at
Apr 13, 2026, 8:05 PM
Active