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][US] Omega Speedmaster Chronoscope - White Panda Dial - 43mm - 329.30.43.51.02.002

[US] Omega Speedmaster Chronoscope - White Panda Dial - 43mm - 329.30.43.51.02.002

Omega - 329.30.43.51.02.002 · $5,125
This Omega Speedmaster Chronoscope features a white panda dial and a 43mm case size.

  • Condition: Fantastic condition
  • Case Size: 43mm
Posted at
Dec 17, 2025, 8:42 AM
Active
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[WTS] Omega Speedmaster Moonphase Master Chronometer – Blue Dial – Full Set (2023)

Omega Speedmaster Moonphase Master Chronometer – Blue Dial – Full Set (2023)

Omega - 304.33.44.52.03.001 · $7,150
This is a 2023 Omega Speedmaster Moonphase Master Chronometer with a blue dial, blue ceramic bezel, and complete set of accessories. It features a 44.25mm steel case, Calibre 9904 movement, sapphire crystal front and back, 60h power reserve, 100m water resistance, and moonphase display.

  • Condition: very good with light surface wear on case/clasp
  • Case size: 44.25mm
  • Water resistance: 100m
  • Crystal type: Sapphire
Posted at
Dec 17, 2025, 12:46 AM
Active
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[WTS] Omega Speedmaster Spacemaster Z-33 (only full kit on titanium bracelet for sale in the world!) $4500

Omega Speedmaster Spacemaster Z-33 (only full kit on titanium bracelet for sale in the world!) $4500

Omega - Spacemaster Z-33 · $4,500
The Omega Speedmaster Spacemaster Z-33 is a multifunction quartz watch inspired by the 'Pilot line' with features such as an alarm, chronograph, perpetual calendar, and two-time zone function.

  • Condition: Overall normal for age with scratches on titanium bracelet and minor blemishes on box
  • Water resistance depth: 30 meters
  • Case size: 43mm diameter
Posted at
Dec 16, 2025, 11:15 PM
Active
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[WTS] 2021 Omega Speedmaster Professional Sapphire Sandwich

2021 Omega Speedmaster Professional Sapphire Sandwich

Omega - 310.30.42.50.01.002 · $6,100
A 2021 Omega Speedmaster Professional 'Sapphire Sandwich' in excellent condition, featuring a 42mm steel case with a sapphire back and manual winding movement.

  • Condition: Pre-owned, cosmetic condition: 8/10
  • Movement: OMG Calibre 3861 (manual winding)
  • Power reserve: approximately 50 hours
  • Case material: Steel front, sapphire back
Posted at
Dec 16, 2025, 11:13 PM
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[wts] 🔥🔥 Omega Speedmaster Professional “Moonwatch”🔥🔥 Priced to sell!!

🔥🔥 Omega Speedmaster Professional “Moonwatch”🔥🔥 Priced to sell!!

Omega - 3570.5 · $3,500
This Omega Speedmaster Professional “Moonwatch” is one of the seller's favorite watches, featuring a 42mm case and reference number 3570.5.

  • Condition: Minimal wear throughout, may contain marks on crystal under heavy magnification
  • Case size: 42mm diameter
Posted at
Dec 16, 2025, 9:53 PM
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[WTS] 2014 Omega Speedmaster 57

2014 Omega Speedmaster 57

Omega - Speedmaster 57 · $3,950
This Omega Speedmaster 57 features a 41.5mm automatic movement, caliber 9300.

  • Movement: caliber 9300 (column wheel vertical clutch)
  • Case size: 41.5mm
Posted at
Dec 16, 2025, 9:35 PM
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[WTS] Lowered Price: Omega Speedmaster Moonwatch Moonshine Gold with Green Dial

Lowered Price: Omega Speedmaster Moonwatch Moonshine Gold with Green Dial

Omega - 310.60.42.50.10.001 · $30,000
The Omega Speedmaster Moonwatch Moonshine Gold features a 42mm case in Moonshine gold with a green dial and is powered by the hand-wound Master Chronometer caliber 3861. It includes a sapphire crystal front and caseback, chronograph function, and Sedna gold bracelet.

  • Condition: Excellent, barely worn
  • Bracelet material: Sedna gold
  • Bracelet style: Folding clasp
  • Movement: Hand-wound Master Chronometer Caliber 3861
Posted at
Dec 16, 2025, 7:44 PM
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[WTS] OMEGA Speedmaster Moonwatch Professional White Dial Stainless Steel Watch 42mm - 310.30.42.50.04.001

OMEGA Speedmaster Moonwatch Professional White Dial Stainless Steel Watch 42mm - 310.30.42.50.04.001

Omega - 310.30.42.50.04.001 · $6,975
This Omega Speedmaster Moonwatch Professional features a white dial and is powered by the manual wind Caliber 3861 movement.

  • Condition: good condition, shows some signs of wear
  • Movement: Caliber 3861 (manual wind)
  • Case size: 42mm diameter
  • Crystal: sapphire
Posted at
Dec 16, 2025, 6:17 PM
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[WTS] Omega Speedmaster Triple Date

Omega Speedmaster Triple Date

Omega - Speedmaster Triple Date · $2,450
This Omega Speedmaster Triple Date is a complete timepiece with some minor missing items. It features an additional set of links, which adds convenience for wearers.

  • Condition: good shape
  • Cards included: full set minus one card
Posted at
Dec 16, 2025, 6:04 PM
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