Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet
Reference 310.55.42.50.13.001
About this watch
The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet is a masterpiece of horology, blending art, history, and cutting-edge technology. Crafted from Sedna Gold, this watch boasts a unique color that's both warm and striking. Its round shape and sunburst brown finish give it a luxurious feel, while the diamond-set bezel adds a touch of elegance. The 3861 is equipped with a chronograph feature, allowing you to measure elapsed time with precision. At its heart lies the Omega caliber 3861, an updated version of the legendary caliber 861/1861, featuring a co-axial escapement and silicon balance spring for accuracy and reliability. Master Chronometer certified by METAS, this watch has undergone rigorous testing to withstand magnetic fields of up to 15,000 gauss. Its sleek design and exceptional craftsmanship make it a standout in any collection. Whether you're at a formal event or a casual outing, this watch is sure to turn heads.
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Key Features
- Sedna Gold case
- Manual-winding chronograph movement
- Co-axial escapement and silicon balance spring
- Master Chronometer certified by METAS
- Diamond-set bezel
- Water resistance up to 50 meters
- 42.00 mm diameter and 13.18 mm height
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet
- Reference
- 310.55.42.50.13.001
- Movement
- 3861
- Movement Features
-
- Small Seconds, Hours, Minutes
- Chronograph
- Chronometer
- Case
- Sedna Gold 42mm
- Dial Color
- Brown
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings
FSO Like New Omega Speedmaster Professional Moonwatch - $4,650 - Ref 310.30.42.50.01.001
The Omega Speedmaster Professional Moonwatch is a high-end watch with a hesalite crystal, running within spec and featuring a flawless design.
- Condition: Like New
- Crystal type: hesalite
- Bracelet adjustment: on the fly adjustment clasp
- Warranty: no warranty included
FSO Like New Omega Speedmaster Professional Moonwatch - $4,550 - Ref 310.30.42.50.01.001
This Omega Speedmaster Professional Moonwatch is a few weeks old, purchased new from Watchmaxx, and has been worn only a dozen times carefully. It looks amazing and includes all original packaging and accessories.
- Condition: Like new
- Hesalite crystal: true
- On the fly adjustment clasp: yes
- Bracelet: new
FSO Like New Omega Speedmaster Professional Moonwatch - $4,450 - Ref 310.30.42.50.01.001
This Omega Speedmaster Professional Moonwatch features a hesalite crystal and is in flawless condition, with no scratches or marks of any kind. It has been worn carefully only a dozen times and runs within spec.
- Condition: Like New
- Age: a few weeks old
- Bracelet: new bracelet with on the fly adjustment clasp
- Crystal: hesalite crystal
FSO - Omega Speedmaster Professional Moonwatch - Ref 310.30.42.50.01.001
A brand-new Omega Speedmaster Professional Moonwatch with hesalite crystal, purchased only a few weeks ago from Watchmaxx.
- Condition: Flawless and like new
- Warranty: No warranty included
- Crystal type: Hesalite crystal
Withdrawn Omega Speedmaster Professional Moonwatch - Ref 310.30.42.50.01.001
This Omega Speedmaster Professional Moonwatch is a few weeks old, purchased from Watchmaxx on May 19th of this year, and has been worn only a dozen times carefully. It is running within spec and looks amazing.
- Condition: Like new
- Material: Hesalite crystal
- Warranty: No warranty included
![[wts] MINT JAN 2025 Omega Speedmaster racing 9900 44.25mm 329.30.44.51.01.001](https://preview.redd.it/l3to59lojf5f1.jpg?width=640&crop=smart&auto=webp&s=53e78e3aa0149f8971d5b25816757ad352fface3)
MINT JAN 2025 Omega Speedmaster racing 9900 44.25mm 329.30.44.51.01.001
This Omega Speedmaster racing is a really clean piece with a 44.25mm case size, featuring a January 2025 production date and coming with the full set of accessories. It's available for sale at a discounted price.
- Condition: Mint
- Case size: 44.25mm diameter
- Warranty status: Full
![[wts] Omega Speedmaster racing 9900 44.25mm 329.33.44.51.01.001 under warranty](https://preview.redd.it/eepo73g76f5f1.jpg?width=640&crop=smart&auto=webp&s=45021bf4b063c7505d66a229dd40183194f48558)
Omega Speedmaster racing 9900 44.25mm 329.33.44.51.01.001 under warranty
This Omega Speedmaster racing watch is a 44.25mm model with factory warranty, dated OCT 2024.
- Condition: good
- Warranty: factory
- Size: 44.25mm diameter

Omega Speedmaster - Silver Snoopy - 310.32.42.50.02.001 ( excellent )
This Omega Speedmaster Moonwatch Silver Snoopy Award 50th Anniversary is a stainless steel watch with a 42mm case and an Omega Master Chronometer Movement.
- Condition: Excellent
- Case material: stainless steel
- Case size: 42mm