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

Reference 310.20.42.50.99.001

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] [USA] Omega Speedmaster Professional 'Sapphire Sandwich' (310.30.42.50.01.002) – 2025 Like-New Complete Set 🚨$6,795🚨

[USA] Omega Speedmaster Professional 'Sapphire Sandwich' (310.30.42.50.01.002) – 2025 Like-New Complete Set 🚨$6,795🚨

This Omega Speedmaster Professional is a sapphire sandwich example powered by Calibre 3861 and comes as a complete set with box, warranty cards, serial tag, and art manual.

  • Condition: Mint, like-new
  • Movement: Calibre 3861
  • Retail price: $9,400 + taxes
Posted at
Jan 5, 2026, 10:55 PM
Active
[WTS] Omega Speedmaster Professional White Dial 2024 (Full Set, Sapphire)

Omega Speedmaster Professional White Dial 2024 (Full Set, Sapphire)

This 2024 Omega Speedmaster Professional features a white dial, sapphire sandwich design and is manual-wind Cal. 3861 with METAS certification.

  • Condition: excellent
  • Case size: 42mm
  • Movement type: manual-wind Cal. 3861
  • Crystal material: sapphire
Posted at
Jan 5, 2026, 10:48 PM
Active
[WTS] Omega Speedmaster Box, Longines Cork Pour-Over Coffee Set

Omega Speedmaster Box, Longines Cork Pour-Over Coffee Set

Omega - Speedmaster · $149
The listing is for an Omega Speedmaster box and a Longines Cork Pour-Over Coffee Set, both in good condition. The Speedmaster box is OEM and the coffee set is brand new.

  • Box type: OEM box
Posted at
Jan 5, 2026, 9:51 PM
Active
[WTS] [WW] Omega Speedmaster Michael Schumacher Edition 2001

[WW] Omega Speedmaster Michael Schumacher Edition 2001

Omega - 3519.50.00 · $1,600
This Omega Speedmaster Michael Schumacher Edition is a limited edition watch from 2001, featuring an automatic movement and a 39mm case size. It comes without a box or papers and has overall good working condition.

  • Condition: Good condition with signs of wear on bracelet, dial, bezel and buckle
  • Bracelet length: 165mm (16.5cm)
  • Case diameter: 39mm
Posted at
Jan 5, 2026, 3:31 PM
Active
[WTS] Omega Speedmaster Moonphase Blue Dial 44.25mm Full Set

Omega Speedmaster Moonphase Blue Dial 44.25mm Full Set

  • Case size: 44.25mm
  • Dial color: Blue
Posted at
Jan 5, 2026, 9:27 AM
Active
[WTS][US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

[US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

Omega - 3551.20.00 · $4,150
This Omega Speedmaster Broad Arrow features a white dial, 42mm case and is in full set, including box, manuals and triple cards.

  • Condition: Fantastic condition with only minor, if any, hairlines on bracelet, case, and clasp.
  • Case Size: 42mm
  • Diameter: 42mm
Posted at
Jan 5, 2026, 8:06 AM
Active
[WTS] Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫

Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫

Omega - 145.022-69 · $14,995
A 1969 Omega Speedmaster Moonwatch with a tropical brown dial featuring heavy yellow patina across all indices and matching hands, along with an original blue bezel and correct flat case back.

  • Condition: Very rare and fully original, beautiful condition with heavy patina on dial.
  • Case size: 42mm
  • Year: 1969
  • Movement serviced: November 2025
Posted at
Jan 5, 2026, 6:34 AM
Active
[WTS] 2025 White Omega Speedmaster Moonwatch Professional

2025 White Omega Speedmaster Moonwatch Professional

The watch is described as being in like new condition with very minor micro scratches on the clasp, and comes with a full kit including inner box, outer box, manuals, warranty papers, card holder, and full links.

  • Condition: Like new with minor micro scratches on the clasp
  • Location Purchased: Japan
  • Located In: Dallas, TX
Posted at
Jan 4, 2026, 9:16 PM
Active
[WTS] 2025 Omega Speedmaster Hesalite 3861 310.30.42.50.01.001

2025 Omega Speedmaster Hesalite 3861 310.30.42.50.01.001

2025 Omega Speedmaster Hesalite with a manual-wind Calibre 3861 movement, size: 42mm diameter, hesalite crystal and stainless steel case.

  • Condition: Excellent condition overall
  • Size: 42mm diameter
  • Case material: stainless steel
  • Dial color: black
Posted at
Jan 4, 2026, 8:55 PM
Active