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

Reference 310.20.42.50.99.001

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

About this watch

The Omega Speedmaster Professional Moonwatch 310.20.42.50.99.001 is a stunning blend of tradition and innovation, featuring a unique Sedna Gold and pink finish. Its 42mm stainless steel case and Sedna Gold accents command attention, while the remarkable Omega caliber 3861 movement boasts a co-axial escapement, reducing friction for enhanced accuracy and longevity. Certified by METAS as a Master Chronometer, this watch can resist magnetic fields reaching an impressive 15,000 gauss. The sunburst pink finish adds sophistication, making it perfect for both casual and formal settings.
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Key Features

  • Omega caliber 3861 movement
  • 42mm stainless steel case
  • Sedna Gold accents
  • Co-axial escapement
  • Master Chronometer certified by METAS
  • 50m water resistance
  • Chronograph function

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink
Reference
310.20.42.50.99.001
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. Mother of pearl dial. 39mm. Automatic.

Omega Speedmaster. Mother of pearl dial. 39mm. Automatic.

Omega · $2,100
A 39mm automatic Omega Speedmaster with a mother of pearl dial and OEM omega strap.

  • Case size: 39mm
  • Movement type: Automatic
Posted at
Apr 20, 2026, 7:37 PM
Active
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[WTS] Omega Speedmaster Hesalite (ref. 3103042500100)

Omega Speedmaster Hesalite (ref. 3103042500100)

Omega - 3103042500100 · $5,350
A recently serviced Omega Speedmaster Professional Moonwatch with a newer 3861 movement, featuring Hesalite crystal. The watch comes with full set, including warranty card, pictograms, master chronometer certification, and extra links.

  • Condition: Very good, some small marks on the case and desk diving marks on the clasp
  • Movement: 3861, newer
  • Set included: full set, warranty card dated January 2021, pictograms, master chronometer certification, extra links
Posted at
Apr 20, 2026, 7:12 PM
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[WTS][US] Omega Speedmaster Moonwatch Professional - Reverse Panda - 42mm - 310.30.42.50.01.004 - Full Set - BRAND NEW

[US] Omega Speedmaster Moonwatch Professional - Reverse Panda - 42mm - 310.30.42.50.01.004 - Full Set - BRAND NEW

Omega - 310.30.42.50.01.004 · $10,850
This Omega Speedmaster Moonwatch Professional is a 42mm Reverse Panda model available as a full set, complete with all original accessories.

  • Condition: Brand new, unworn, and in pristine condition
  • Case Size: 42mm
  • Set Contents: Watch,Box (inner & outer),Travel case,Historical booklet,User manual,Microfiber cloth,Master chronometer card,Warranty card
Posted at
Apr 20, 2026, 6:44 PM
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[WTS] Omega Speedmaster Moonwatch Exhibition Back 3592.50 Apollo XI Watch

Omega Speedmaster Moonwatch Exhibition Back 3592.50 Apollo XI Watch

Omega - Speedmaster Moonwatch Exhibition Back 3592.50 Apollo XI
  • Image link: https://imgur.com/a/2pYMJf8
Posted at
Apr 20, 2026, 11:37 AM
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[WTS] Omega Speedmaster Triple Calendar Blue Sunburst Dial 3523.80 39mm | Great Condition (Serviced) | $2500

Omega Speedmaster Triple Calendar Blue Sunburst Dial 3523.80 39mm | Great Condition (Serviced) | $2500

Omega - 3523.80 · $2,500
This Omega Speedmaster Triple Calendar features a blue sunburst dial, stainless steel case, and automatic movement. It's compact at 39mm and comes with an OEM bracelet.

  • Condition: Great condition, serviced
  • Movement: Omega Cal. 1151 (based on Valjoux 7751)
  • Case dimensions: 44.7mm lug-to-lug, 13–14mm thickness
  • Bracelet: OEM, fits up to 19cm (7.5 inches)
Posted at
Apr 20, 2026, 12:03 AM
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[WTS] Omega Speedmaster Racing Reverse Panda dial New/ unworn Full set 6/2025

Omega Speedmaster Racing Reverse Panda dial New/ unworn Full set 6/2025

Omega - 326.30.40.50.01.002 · $4,300
The Omega Speedmaster Racing features a black dial with classic Speedmaster heritage and modern refinements, offering an ideal balance of sportiness and versatility.

  • Condition: New/unworn
  • Case Size: 40mm
  • Bracelet Length: 7-inch
  • Warranty Expiration: 6/2025
Posted at
Apr 19, 2026, 4:31 PM
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[WTS] Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers

Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers

Omega - 329.30.44.51.01.001 · $5,795
This is a Omega Speedmaster Racing Chronograph, model number 329.30.44.51.01.001, in pre-owned condition.

  • Condition: pre-owned with minor wear
  • Size: 44.25mm diameter
  • Bracelet material: stainless steel
Posted at
Apr 19, 2026, 1:53 PM
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[WTS] Omega Speedmaster Date Chronometer 3210.50.00 — Big Seahorse, Cal. 1164 (Serviced) — $2,150 Shipped (Tariff Coverd)

Omega Speedmaster Date Chronometer 3210.50.00 — Big Seahorse, Cal. 1164 (Serviced) — $2,150 Shipped (Tariff Coverd)

Omega - 3210.50.00 · $2,150
This Omega Speedmaster Date Chronometer features a classic black dial and iconic tachymeter bezel, paired with the Cal. 1164 automatic chronometer-certified movement.

  • Condition: Honest wear consistent with age, minor signs of use on bezel insert
  • Case size: 40mm diameter
  • Movement: Cal. 1164 (ETA 7750 base)
  • Water resistance: unknown
Posted at
Apr 19, 2026, 8:21 AM
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[WTS] Omega Speedmaster Moonwatch Sapphire / 310.30.42.50.01.002 / 2022 full set under warranty - $5950

Omega Speedmaster Moonwatch Sapphire / 310.30.42.50.01.002 / 2022 full set under warranty - $5950

Omega - 310.30.42.50.01.002 · $5,950
For sale is a Omega Speedmaster Moonwatch Sapphire Sandwich, overall in excellent condition.

  • Condition: Overall excellent condition with normal marks on the case, bracelet, clasp, and caseback
  • Year: 2022
  • Warranty: under warranty
Posted at
Apr 18, 2026, 9:40 PM
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