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

Reference 310.23.42.50.99.001

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

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 ’57 Sedna Gold Two-Tone 41.5mm 331.22.42.51.01.001 Full Set Excellent

2024 Omega Speedmaster ’57 Sedna Gold Two-Tone 41.5mm 331.22.42.51.01.001 Full Set Excellent

Omega - 331.22.42.51.01.001 · $7,450
A vintage-inspired Speedmaster with modern Master Co-Axial engineering, featuring 18K Sedna gold case and black dial.

  • Condition: Excellent
  • Case material: 18K Sedna gold
  • Diameter: 41.5mm
Posted at
Apr 18, 2026, 2:33 PM
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[WTS] Omega Speedmaster 3513.20 Chrnograph Olympic Special Edition Blue Red Hands |Good conditon| Serviced| Full Box Paper Tag| 2300$

Omega Speedmaster 3513.20 Chrnograph Olympic Special Edition Blue Red Hands |Good conditon| Serviced| Full Box Paper Tag| 2300$

Omega - 3513.20 · $2,300
This Omega Speedmaster stands out with its white dial and eye-catching red and blue hands, making it a unique piece.

  • Condition: Good Condition, Serviced
  • Case Size: 39mm diameter
  • Crystal: Sapphire crystal
  • Lug Width: 20mm
Posted at
Apr 18, 2026, 12:59 PM
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[WTS] Omega Speedmaster Day-Date "Reduced" | Black Dial Ref. 3520.50 | 39mm | Stainless Steel | Full Collector's Set

Omega Speedmaster Day-Date "Reduced" | Black Dial Ref. 3520.50 | 39mm | Stainless Steel | Full Collector's Set

Omega - 3520.50 · $62,000
This Omega Speedmaster Day-Date is a black dial model with reference number 3520.50 and features a 39mm stainless steel case.

  • Size: 39mm diameter
Posted at
Apr 18, 2026, 11:53 AM
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[WTS] Omega Speedmaster Automatic 3513.50 - Suede Leather Strap - Good Condition

Omega Speedmaster Automatic 3513.50 - Suede Leather Strap - Good Condition

Omega - 3513.50 · $1,800
A 39mm Omega Speedmaster Automatic with automatic winding, date display, running seconds, chronograph minutes, and chronograph hours features.

  • Condition: Good condition with signs of wear
  • Case size: 39mm
  • Material: Automatic
Posted at
Apr 18, 2026, 11:51 AM
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[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 features a white dial on a steel bracelet, with a case size of 42mm. It is powered by the manual caliber 3861 movement and comes with boxes, booklet, and warranty card.

  • Condition: Excellent
  • Case Size: 42mm
  • Case Material: Stainless Steel
  • Bracelet Material: Stainless Steel
Posted at
Apr 18, 2026, 8:01 AM
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[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! 🔥$10,000🔥

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

OMEGA - 311.92.44.30.01.001 · $10,000
This OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 is a commemorative watch crafted from black ceramic, featuring a skeletonized dial and laser-ablated details to represent the lunar surface. It's powered by the Calibre 1869 movement with blackened bridges and mainplate.

  • Condition: UNWORN
  • Case size: 44.25mm diameter
  • Movement: Calibre 1869
Posted at
Apr 17, 2026, 10:12 PM
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[WTS] 2015 Omega Speedmaster Grey Side of the Moon 311.93.44.51.99.001 Full Set $7,500

2015 Omega Speedmaster Grey Side of the Moon 311.93.44.51.99.001 Full Set $7,500

Omega - 311.93.44.51.99.001 · $7,500
A modern and highly distinctive take on the Speedmaster line featuring a full grey ceramic case and matching dial.

  • Condition: Excellent (pre-owned, minimal wear)
  • Case Size: 44.25mm
  • Case Material: Grey ceramic
  • Movement: Automatic chronograph (Omega Co-Axial Calibre 9300)
Posted at
Apr 17, 2026, 9:36 PM
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[WTS] Omega Speedmaster Moonwatch White Dial 310.30.42.50.04.001

Omega Speedmaster Moonwatch White Dial 310.30.42.50.04.001

Omega - 310.30.42.50.04.001 · $7,800
This Omega Speedmaster Moonwatch features a white dial and is in overall mint condition.

  • Condition: mint condition
  • Accessories: full set - boxes, papers, warranty card, pictogram card, Master Chronometer card, extra links
Posted at
Apr 17, 2026, 9:19 PM
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[WTS] 2023 Omega Speedmaster Dark Side of The Moon Apollo 8 Black 311.92.44.30.01.001 Full Set

2023 Omega Speedmaster Dark Side of The Moon Apollo 8 Black 311.92.44.30.01.001 Full Set

Omega - 311.92.44.30.01.001 · $8,500
This listing is for a 2023 Omega Speedmaster Dark Side of The Moon Apollo 8, featuring a black ceramic case and leather strap with yellow accents.

  • Condition: Excellent preowned condition with no signs of wear on the case, bracelet, bezel or buckle. Strap has some small spots of wear
  • Case material: black ceramic
  • Case dimensions: 44.25mm diameter
  • Bezel: black ceramic
Posted at
Apr 17, 2026, 8:19 PM
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