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

1967 Omega Speedmaster 105.012-66CB
This Omega Speedmaster Professional 105.012-66CB is a 1967 model that has been serviced and refinished in 2023, with expertly refinished Central Boites case and excellent condition stepped dial.
- Condition: pristine condition
- Case material: Central Boites
- Dial color: black with touch of grey
- Lume patina: pale yellow

2004 Omega Speedmaster 1957 Reissue From Japan EXTRAS Ref. 3594.50
2004 Omega Speedmaster 1957 Reissue From Japan EXTRAS, comes with two bracelets and a custom unmarked caseback to exhibit the 1861 movement.
- Condition: Excellent
- Bracelets: 2 (original and Apollo 11 50th Anniversary flat link)
- Caseback: custom unmarked
- Movement: 1861
Omega Speedmaster Moonwatch Professional 310.60.42.50.10 Yellow Gold Green Dial
This is a 42mm Omega Speedmaster Moonwatch with a Yellow Gold case, bracelet, and Ceramic bezel featuring a Green Dial.
- Condition: Unworn Excellent Condition
- Case Size: 42mm
- Material: Yellow Gold
- Bezel Type: Ceramic
Omega Speedmaster Schumacher Red Dial Chronograph Automatic 3510.61
The Omega Speedmaster Schumacher Red Dial Chronograph Automatic is a mechanical watch with a chronograph function, housed in a stainless steel case with a 38mm diameter.
- Condition: 90%
- Size: 38mm diameter
- Case material: Stainless Steel

Omega Speedmaster - Sedna Gold FOIS - 311.63.40.30.02.001 ( excellent )
This Omega Speedmaster Moonwatch First Omega In Space ( FOIS ) Numbered Edition is a Sedna Gold 39.7mm Panda Dial on Leather Strap, complete with all boxes, papers, booklets, hang tag and Omega Warranty Card dated March 2019.
- Condition: excellent condition
- Case Size: 39.7mm
- Calibre: Omega 1861
- Movement Type: mechanical

2024 Omega Speedmaster 44.25mm 311.92.44.51.01.006 Dark Side of the Moon
The Omega Speedmaster Dark Side of the Moon is a ceramic black dial watch with a 44.25mm case size, featuring an adjustable leather strap and foldover clasp.
- Condition: Excellent overall condition
- Case Size: 44.25mm

Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( excellent )
Up for sale is an excellent condition Omega Speedmaster Moonwatch Professional White Dial Sapphire on Bracelet, reference # 310.30.42.50.04.001 It comes with all boxes, papers, booklets, and Omega Warranty Card dated August 2024.
- Condition: Excellent
- Case Size: 42mm
- Material: Stainless Steel

Omega Speedmaster Racing - 44.25mm - Orange - 329.32.44.51.01.001 (excellent)
A black and orange dial Omega Speedmaster Racing in excellent condition, complete with all original boxes, papers, and warranty card.
- Condition: Excellent
- Case Size: 44.25mm
- Movement Type: Master Co-Axial 9900 Chronometer