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
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Omega Speedmaster Professional Sapphire Sandwich $6680 2025
This Omega Speedmaster Professional is a unique variant known as the Sapphire Sandwich.
- Price: $6680
![[WTS] Omega Speedmaster Professional Sapphire Sandwich 2025 $6680](https://preview.redd.it/h3jeubmo85eg1.jpg?width=640&crop=smart&auto=webp&s=214cdf5cbf4bd45e76b9af29e933654dcd9bec1a)
Omega Speedmaster Professional Sapphire Sandwich 2025 $6680
a rare Omega Speedmaster Professional with a sapphire sandwich case and a 2025 model number.
- Year of production: 2025
![[WTS] Omega Speedmaster 39mm olympic 3516.20](https://preview.redd.it/121go4jp50eg1.jpg?width=640&crop=smart&auto=webp&s=3478e9cca169cbbe1fbdb6145cfbe9086c47be43)
Omega Speedmaster 39mm olympic 3516.20
This is a beautiful Omega Speedmaster limited Olympic edition, with minimal signs of wear and coming with an Omega red travel case.
- Condition: very good condition with minimal sign of wear
- Case size: 39mm
- Movement accuracy: -+4/day
- Included accessories: omega red travel case
![[WTS] Omega Speedmaster 3861 Bracelet](https://preview.redd.it/xj67cs6lazdg1.jpg?width=640&crop=smart&auto=webp&s=85637a845c99cfcf9322473104ff0eaeecba865e)
Omega Speedmaster 3861 Bracelet
This Omega Speedmaster is a brand new model with additional features such as tool free microadjust and it has not been worn.
- Condition: New, never worn
- Links included: true
- Clasp condition: plastic still on
- Adjustment method: tool free microadjust
![[WTS] Omega Speedmaster Professional Sapphire Sandwich – Cal. 1863 – New OEM Omega 3861 Bracelet With Quick Adjust Clasp – Spiralwinder Dot Over 90 Ceramic Bezel](https://preview.redd.it/eibhfok1wxdg1.jpg?width=640&crop=smart&auto=webp&s=c3e3244a70aa011b8b4f8ec3dd689f0665c6ea9a)
Omega Speedmaster Professional Sapphire Sandwich – Cal. 1863 – New OEM Omega 3861 Bracelet With Quick Adjust Clasp – Spiralwinder Dot Over 90 Ceramic Bezel
This Omega Speedmaster Professional Sapphire Sandwich is powered by the highly regarded caliber 1863 and features a Spiralwinder Ceramic DON tachymètre bezel. The watch has been upgraded with a new OEM 3861 bracelet installed at the Omega Boutique.
- Condition: Excellent
- Movement: Cal. 1863
- Crystal: Sapphire front & back
- Bezel: Spiralwinder Ceramic DON (Dot Over Ninety) tachymètre bezel
![[WTS] OMEGA Speedmaster 🌘🌑“Dark Side of the Moon”Co-Axial Master Chronometer Chronograph|Ref. 310.92.44.51.01.001| 2025 | Full Set in Like New Condition](https://preview.redd.it/wdbhc2mdpxdg1.jpg?width=640&crop=smart&auto=webp&s=a1e550ea35c47efb184141a12e9b1fc8abf02739)
OMEGA Speedmaster 🌘🌑“Dark Side of the Moon”Co-Axial Master Chronometer Chronograph|Ref. 310.92.44.51.01.001| 2025 | Full Set in Like New Condition
The OMEGA Speedmaster 'Dark Side of the Moon' is a modern icon that blends OMEGA's space-faring heritage with advanced materials, crafted entirely in black ceramic for exceptional scratch resistance and lightweight wearability.
- Condition: Excellent
- Case size: 44.25 mm
- Set: Full set (box, papers, 5 year warranty)
- Movement: Co-Axial Master Chronometer Calibre 9908
![[WTS] Omega Speedmaster. 39mm. Special Dial.](https://preview.redd.it/g5hh4ppwfxdg1.jpeg?auto=webp&s=9f6bb06d948b1936c42120340f03afffccf51e0a)
Omega Speedmaster. 39mm. Special Dial.
A 39mm Omega Speedmaster with a special texture dial is being sold. The watch is located in NJ USA and comes with the option for a Facetime viewing.
- Case diameter: 39mm
- Movement type: automatic
![[WTS] Omega Speedmaster. 39mm. White Ceramic. Very nice.](https://preview.redd.it/vg3z74icfxdg1.jpeg?auto=webp&s=b33324fb81fa5f56e0c48212c2f053ff89c7dfce)
Omega Speedmaster. 39mm. White Ceramic. Very nice.
This Omega Speedmaster is a 39mm watch with white ceramic and strong lume. It's a great timepiece that comes with additional photos available upon request.
- Case size: 39mm
- Material: white ceramic
- Lume strength: strong
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Omega Speedmaster FOIS – Full Set – $4,300 Shipped OBO
The Omega Speedmaster FOIS is a widely regarded, wearable watch that captures classic early Speedmaster proportions with its 39.7mm straight-lug case.
- Condition: Very good overall
- Case size: 39.7mm diameter
- Movement type: Manual winding
- Crystal material: Hesalite