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. Reverse Panda. $1849 Only
A well-maintained Omega Speedmaster, also known as a Reverse Panda, available for sale. The watch features a 39mm diameter and is on its original OEM bracelet.
- Condition: 9/10
- Bracelet size: 39mm diameter
- Wrist fit: ~7inch
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2021 SERVICED Omega Speedmaster Apollo 8 Dark Side of the Moon 311.92.44.30.01.001 B&P
The Omega Speedmaster Dark Side of the Moon Apollo 8 is one of the most striking modern Speedmasters — full black ceramic, skeleton dial, and a movement laser-engraved to look like the lunar surface. The yellow accents give it that bold, mission-ready look you can spot across the room.
- Condition: Good condition with very few signs of wear, mainly on the leather strap
- Case Size: 44.25mm
- Movement Caliber: Omega Calibre 1861
- Power Reserve: 48 hours
![[WTS] 2022 Omega Speedmaster Racing 40mm 326.32.40.50.06.001 Full Set Excellent](https://external-preview.redd.it/hVNZLhh3WfbzbyrHTldHlFTAcXQyK4x2CTmRnigFXcA.jpeg?auto=webp&s=27eb97130ceb2bbc1cd1a70ca86275403873c42e)
2022 Omega Speedmaster Racing 40mm 326.32.40.50.06.001 Full Set Excellent
A sporty, modern Speedmaster with racing‑inspired detailing.
- Condition: Excellent
- Size: 40mm diameter
- Year: 2022
![[WTS] Omega Speedmaster Reduced 39mm - 3510.50](https://preview.redd.it/e8mequu63yzg1.jpg?width=640&crop=smart&auto=webp&s=365840273688c83f6144b7df653285e5c33fbfc6)
Omega Speedmaster Reduced 39mm - 3510.50
A Omega Speedmaster Reduced in 39mm size, running strong with a small issue with the chronograph function.
- Condition: pre-owned, good condition
- Size: 39mm diameter
- Wrist size: not specified
![[WTS] Omega Speedmaster Day Date 3523.80](https://preview.redd.it/w7wpxmpy0yzg1.jpg?width=640&crop=smart&auto=webp&s=0624206aff4b6a4d22a923ee1e0ef2474d7fdacc)
Omega Speedmaster Day Date 3523.80
This Omega Speedmaster Day Date features a beautiful blue dial and is in excellent condition.
- Condition: Excellent
- Payment Methods Accepted: Cryptocurrency and other methods (except PayPal)
- Location: Southwest FL
- Local Meeting Available: Yes
![[WTS] Omega Speedmaster Date 3511.50](https://preview.redd.it/htju0vwevxzg1.jpg?width=640&crop=smart&auto=webp&s=3759a62af27a8e9cce27492da4193a969d22a359)
Omega Speedmaster Date 3511.50
This Omega Speedmaster date is a rare reverse panda dial model only sold in Japan.
- Condition: great condition
- Location: southwest FL
- Payment Methods Accepted: crypto with small fee, local meetups
- Payment Methods Not Accepted: PayPal
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“May the 4th Be With You” 2026 Card Omega Speedmaster Sapphire Complete Set *$7,200 + label*
A brand new Omega Speedmaster Sapphire Sandwich Complete Set with all cards included, travel case, and literature.
- Condition: Brand new, unworn and unsized
- Year: 5/4/2026
- Contents: All cards included, travel case and Speedmaster literature
- Payment methods: Zelle or Wire preferred, Credit Cards accepted +3.5%
![[WTS] 2026 Omega Speedmaster White Full Set](https://preview.redd.it/52z1wg2v8xzg1.jpeg?auto=webp&s=ed1215e4cd73a06b27cb0bea2cbad7a84db2f4d7)
2026 Omega Speedmaster White Full Set
No description provided in the listing
![[WTS][US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set](https://preview.redd.it/k8nhgcz2mwzg1.jpg?width=640&crop=smart&auto=webp&s=79c56515e65c8c224f4fb5fd956029bf2ba4cde8)
[US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set
Up for sale is an Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm, functions perfectly mechanically.
- Condition: pristine condition with minor hairlines on clasp, case, and bracelet
- Diameter: 39.7mm