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
![[wts] Omega Speedmaster Professional 2017](https://preview.redd.it/7g39jivly2xe1.jpg?width=640&crop=smart&auto=webp&s=42837b59d12c9f93305a9b75fe63d7b8d3e2d37a)
Omega Speedmaster Professional 2017
A 2017 Omega Speedmaster Big Box kit with extras, including exhibition case, original back case, and multiple straps.
- Condition: Excellent, owned for over 2 years
- Age of additional bracelet: less than 6 months
- Straps included: 3
- Bracelet type: Omega 3861
![[WTS] Omega Speedmaster 50th Anniversary Silver Snoopy Award 310.32.42.50.02.001](https://preview.redd.it/qa4m5z26v2xe1.jpg?width=640&crop=smart&auto=webp&s=3768070763c699a636642482674ef869b99a317c)
Omega Speedmaster 50th Anniversary Silver Snoopy Award 310.32.42.50.02.001
A highly sought-after Omega Speedmaster '50th Anniversary Silver Snoopy Award' that commemorates the Apollo 13 mission and NASA's Silver Snoopy Award, blending history and horology in a stunning design.
- Condition: Excellent pre-owned
- Case Size: 42mm diameter
- Case Material: Stainless Steel
- Strap Material: Blue coated nylon fabric
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Omega Speedmaster Two Tone Moonphase
A beautiful Omega Speedmaster two-tone moonphase watch with a silky white dial, gold bezel, and moon-phase subdial. The watch comes on a good quality leather strap with a gold-colored clasp.
- Condition: good condition for its age with some normal wear on the case and bezel
- Movement: Cal 1152
- Case size: 39mm diameter
- Bezel material: gold
![[WTS] Omega Speedmaster Professional Moonwatch 'Sapphire Sandwich' 3861 - New 2025](https://preview.redd.it/38f6qix2b1xe1.jpeg?auto=webp&s=5651af73ef27791fdea1e3a593cba490922bcbcc)
Omega Speedmaster Professional Moonwatch 'Sapphire Sandwich' 3861 - New 2025
The Omega Speedmaster Professional Moonwatch 'Sapphire Sandwich' features a sapphire crystal and see-thru caseback with the new caliber 3861 movement. It comes on a stainless steel bracelet and has a manual-winding chronograph.
- Condition: New, unworn
- Case material: stainless steel
- Bracelet material: steel
- Movement: Caliber 3861, manual-winding chronograph
![[WTS] Omega Speedmaster Teutonic 145.0040 circa 1982-1984](https://preview.redd.it/cmvtd8w9t0xe1.jpg?width=640&crop=smart&auto=webp&s=4358eb9b597125d0ca10f0cf8886148dbdc5426c)
Omega Speedmaster Teutonic 145.0040 circa 1982-1984
This Omega Speedmaster Teutonic is a transitional model produced for the German market from 1982-1984, featuring an integrated style with a cold steel case and soft natural dial hues.
- Condition: Serviced and good condition
- Production period: circa 1982-1984
- Market: German market only
- Wrist size recommendation: 7in and under
![[WTS] Omega Speedmaster Skylabs](https://preview.redd.it/2m1eiecta0xe1.jpg?width=640&crop=smart&auto=webp&s=127dd2692896f00dbf2aa081881eed19b0c23570)
Omega Speedmaster Skylabs
This Omega Speedmaster Space Missions Skylabs features a unique Skylab logo, making it a rare and sought-after collectors' piece. It has a 42mm size and runs great mechanically. The watch comes with the original box.
![[WTS] - Omega Speedmaster Bracelet](https://preview.redd.it/uwngj11390xe1.jpg?width=640&crop=smart&auto=webp&s=a87a1c168b93f2b9a24beb9d4ea8259d432890c7)
- Omega Speedmaster Bracelet
A Speedmaster bracelet in good condition, no material issues, but some light scratches on the clasp. It was purchased at a boutique in New Jersey.
- Condition: Gently used, with light scratches on clasp
- Origin: Bought from a boutique in NJ
- Shipping details: Shipping via UPS with tracking, payment methods accepted include credit cards
![[WTS] Omega Speedmaster FOIS 310.30.40.50.06.001 - First Omega In Space - $6,900](https://preview.redd.it/70seh9erqwwe1.jpeg?auto=webp&s=6d9b2d0c771783e33ebb8ba93043a1e0b6f8b5f8)
Omega Speedmaster Moonphase. Blue Side Of the Moon. Aventurine. 2024yr. 304.93.44.52.03.002
The Omega Speedmaster Moonphase, also known as the Blue Side of the Moon, features a blue aventurine glass dial with 18K Sedna gold indexes and hands. It includes an accurate moon phase indication with a blue enamel aventurine glass disc.
- Condition: Like New
- Movement: Self-Winding
- Dial material: Blue Aventurine Glass
- Bezel material: Ceramic