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 Moonwatch White Dial 310.30.42.50.04.001
Up for sale is the Omega Speedmaster Moonwatch White Dial, a beautiful watch under factory warranty until August 2029.
- Condition: Mint condition with minor signs of wear
- Warranty Start Date: August 2024
- Msrp: 8100
- Comes With: Outer Box, Inner Speedmaster Box, Operating Instructions, Moonwatch Booklet, Pictograms Card, Master Chronometer Card, International Warranty Card

Omega Speedmaster Moonwatch Sapphire Sandwich-310.30.42.50.01.002
A direct descendant of the watch worn on the Moon, this Omega Speedmaster Moonwatch features a classic asymmetrical 42mm stainless steel case and black stepped dial, powered by a hand-wound Co-Axial Master Chronometer 3861 movement.
- Condition: EXCELLENT, very light signs of use
- Case Size: 42mm diameter
- Material: stainless steel
- Bezel: black aluminum with tachymeter scale

Omega Speedmaster �Dark Side of the Moon� 311.92.44.51.01.007
A bold reimagining of the iconic Moonwatch, crafted from a single block of black ceramic with a stunning black zirconium oxide dial and Co-Axial Master Chronometer movement.
- Condition: EXCELLENT - Very light signs of wear, if any
- Case Size: 44.25mm diameter
- Material: Black Ceramic
- Bezel: Black Ceramic with Tachymeter Scale

Omega SPEEDMASTER MOONPHASE 18K YELLOW GOLD STEEL GREEN BEZEL GREY DIAL 2024
This Omega Speedmaster Moonwatch features a 18K yellow gold and stainless steel case with a green ceramic bezel and grey dial.
- Condition: Excellent, unpolished condition
- Case size: 44.25mm diameter
- Movement: Omega Co-Axial Master Chronometer 9904 chronograph movement
- Warranty: under 5 years factory warranty remaining
Omega Speedmaster Reduced "Marui" - 3510.21 - White - Steel - 39mm
A vintage Omega Speedmaster Reduced 'Marui' watch in excellent condition, featuring a white dial and stainless steel case.
- Condition: Pre-Owned, Excellent Grade
- Case Size: 39mm diameter
- Material: Stainless Steel
- Dial Color: White

2006 Omega Speedmaster "Schumacher Limited Edition" Ref. 3559.32 with Box & Paper
The Omega Speedmaster Michael Schumacher Limited Edition features a striking 42mm stainless steel case, white panda dial with black subdials, and the reliable automatic Caliber 3301 movement. It has a tachymeter bezel, sapphire crystal, and 100m water resistance, blending style with functionality.
- Condition: Excellent (little to no wear)
- Movement: Automatic
- Case width: 42mm diameter
- Strap length: 8.00 inches

>>ReDuCeD<< OMEGA SPEEDMASTER AUTOMATIC 3211.31 PANDA DIAL
A stainless steel Omega Speedmaster Automatic with Panda dial, featuring the Omega 1164 movement and a diameter of 40mm.
- Condition: Excellent
- Movement: Omega 1164
- Bracelet Size: fits up to 7.25"
Omega Speedmaster Chronograph Racing Chronometer Carbon Black Dial 3552.59.00
The Omega Speedmaster Chronograph Racing Chronometer features a carbon black dial and is powered by a mechanical automatic movement.
- Condition: 98%
- Case Material: Stainless Steel
- Movement Type: Mechanical Automatic (Cal. 3301)
- Case Size: 42mm

Omega SPEEDMASTER SILVER SNOOPY AWARD 50TH ANNIVERSARY EXTRA 3861 BRACELET 2022
2022 Omega Speedmaster Professional Moonwatch 50th Anniversary Silver Snoopy Award with a silver dial and blue subdials on a stainless steel case. Features a new style Omega 3861 Speedmaster PCL bracelet.
- Condition: Mint, Unpolished
- Case size: 42mm diameter
- Material: Stainless Steel
- Strap material: Blue fabric