Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold - Ruby / Black - Ruby / Bracelet

Reference 310.55.42.50.51.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold is a stunning blend of luxury and functionality, with its Sedna gold construction and intricate chronograph features. The watch's sheer elegance is undeniable, with a black sunburst finish contrasting beautifully with gem-set indexes and ruby accents. Certified as a Master Chronometer by METAS, the Omega caliber 3861 movement is an engineering marvel, resistant to magnetic fields up to 15,000 gauss. With small seconds, hours, and minutes hands, the chronograph functionality offers precision timing. The watch's durability is also noteworthy, with sapphire glass adding scratch resistance. The Sedna gold bracelet ensures a secure fit, while its adjustability makes it comfortable for wearers of all wrist sizes. This timepiece is not just a luxury item but a conversation starter, status symbol, and piece of horological history.
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Key Features

  • Omega caliber 3861 movement with Co-Axial escapement and silicon balance spring
  • Sedna gold construction with gem-set indexes and ruby accents
  • 50m water resistance with sapphire glass scratch resistance
  • Chronograph functionality with small seconds, hours, and minutes hands
  • Adjustable Sedna gold bracelet for secure fit on all wrist sizes

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Sedna Gold - Ruby / Black - Ruby / Bracelet
Reference
310.55.42.50.51.001
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Sedna Gold 42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
50

Current Listings

Omega Speedmaster White 310.30.42.50.04.001 LNIB

Omega Speedmaster White 310.30.42.50.04.001 LNIB

The Omega Speedmaster features a white dial and comes with all its original packaging, including box, books, links, and warranty cards.

  • Condition: Like new, unworn
  • Dial color: White
  • Box set: true
Posted at
Feb 27, 2025, 4:11 PM
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>>ReDuCeD FuRtHeR<< VINTAGE OMEGA SPEEDMASTER PROFESSIONAL PRE-MOON 145.022-69

>>ReDuCeD FuRtHeR<< VINTAGE OMEGA SPEEDMASTER PROFESSIONAL PRE-MOON 145.022-69

Omega - 145.022-69ST · $3,550
This is a pre-moon Omega Speedmaster Professional reference 145.022-69ST, featuring an Omega calibre 861 and a 29 million serial from 1970.

  • Condition: Good vintage condition
  • Case size: 42mm diameter
  • Movement: Omega calibre 861
  • Serial number: 29 million (1970)
Posted at
Feb 27, 2025, 1:15 PM
Active
BNIB Omega SPEEDMASTER PROFESSIONAL MOONWATCH WHITE DIAL 2024 WARRANTY FULL SET

BNIB Omega SPEEDMASTER PROFESSIONAL MOONWATCH WHITE DIAL 2024 WARRANTY FULL SET

This is a brand new Omega Speedmaster Professional Moonwatch with a white dial and stainless steel case, featuring a manual-winding chronograph movement.

  • Condition: Brand New In Box (BNIB)
  • Case size: 42mm
  • Movement: Manual-Winding Chronograph 3861
  • Crystals: Sapphire
Posted at
Feb 26, 2025, 10:49 PM
Active
2020 Omega Speedmaster FOIS Ref: 311.32.40.30.01.001 with B+P (Modded Dial)

2020 Omega Speedmaster FOIS Ref: 311.32.40.30.01.001 with B+P (Modded Dial)

2020 Omega Speedmaster First Omega In Space 'FOIS' with a modded dial that gives the watch a vintage charm, while still being an authentic Omega.

  • Condition: Excellent
  • Case size: 40mm
  • Bezel condition: Excellent
  • Dial type: Black chronograph
Posted at
Feb 26, 2025, 8:32 PM
Active
2020 Omega Speedmaster Ref: 522.30.42.30.03.001 Tokyo 2020 Olympics with B+P

2020 Omega Speedmaster Ref: 522.30.42.30.03.001 Tokyo 2020 Olympics with B+P

This is a limited edition 2020 Olympics Omega Speedmaster with a blue dial and blue tachymeter bezel, featuring traditional stick markers and white sub-dials.

  • Condition: Excellent
  • Case size: 42mm
  • Serial number: 78,8XX,XXX
  • Limited edition number: 16X/2020
Posted at
Feb 26, 2025, 8:31 PM
Active
2024 Omega Speedmaster Ref. 310.30.42.50.04.001 with Box & Papers

2024 Omega Speedmaster Ref. 310.30.42.50.04.001 with Box & Papers

The Omega Speedmaster Moonwatch is a chronograph with significant historical value, accompanied by all six moon landings and featuring a brushed stainless steel bracelet with sapphire glass and a sapphire caseback.

  • Condition: Excellent (little to no signs of wear)
  • Case Width: 42mm
  • Strap Length: 8.00"
  • Movement: Co-Axial Master Chronometer Calibre 3861
Posted at
Feb 26, 2025, 4:13 PM
Active
Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( new )

Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( new )

Omega - 3861 · $7,950
This is a brand new Omega Speedmaster Moonwatch Professional White Dial Sapphire on Bracelet, reference # 310.30.42.50.04.001.

  • Condition: Brand new
  • Case material: Stainless Steel
  • Case size: 42mm
  • Movement type: Omega Master Chronometer Movement
Posted at
Feb 26, 2025, 4:03 PM
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Omega Meteorite Speedmaster Moonphase Grey Dial Blue Bezel - Just Released!

Omega Meteorite Speedmaster Moonphase Grey Dial Blue Bezel - Just Released!

Omega - 304.30.43.52.03.001 · $16,500
A unique and rare Omega Speedmaster Moonphase Meteorite timepiece that combines the legendary Speedmaster design with a captivating meteorite dial, available in brand new condition.

  • Condition: Brand New
  • Case Size: 43mm
  • Bracelet Material: stainless steel
  • Movement Type: Automatic chronograph
Posted at
Feb 26, 2025, 1:40 PM
Active
Omega Speedmaster Professional Moonwatch 311.33.42.30.01.001

Omega Speedmaster Professional Moonwatch 311.33.42.30.01.001

This listing is for an Omega Speedmaster Professional Moonwatch, a high-end timepiece known for its iconic design and association with space exploration.

  • Condition: Excellent
  • Accessories: boxes, book, velcro strap, nato strap, warranty card
Posted at
Feb 25, 2025, 4:21 PM
Active