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
Omega Speedmaster - FOIS - 310.30.40.50.06.001 ( excellent / 2024 )
This is an excellent condition Omega Speedmaster FOIS 39.7mm Stainless Steel Case with the Omega 3861 Calibre, a First Omega in Space model.
- Condition: Excellent condition
- Case size: 39.7mm diameter
- Caliber: Omega 3861
![[WTS] Omega Speedmaster Reduced 3511.12 Yellow JAPAN 馃嚡馃嚨 EXCLUSIVE](https://preview.redd.it/e2mpkxukhtxe1.jpeg?auto=webp&s=48290e5baccab3356aab103ba464c34b8e04602e)
Omega Speedmaster Reduced 3511.12 Yellow JAPAN 馃嚡馃嚨 EXCLUSIVE
Omega Speedmaster Reduced, a watch exclusively released in Japan, comes with the original box and booklet, along with a 7-inch bracelet.
- Bracelet length: 7 inches
- Box and booklet included: true
![[WTS] Omega Speedmaster Professional 145.012 Cal. 321](https://preview.redd.it/akmasi6risxe1.jpg?width=640&crop=smart&auto=webp&s=5084d38a38e69ef2ee564931ff119c623b94f235)
Omega Speedmaster Professional 145.012 Cal. 321
This Omega Speedmaster Professional features a Cal. 321 movement and an exhibition caseback. The watch has aged beautifully with a faded grey bezel and dial patina.
- Movement: Calibre 321
- Bracelet: Flat link Uncle Seiko bracelet
- Box: Original 1968 Olympic box (possibly)
![[WTS] New 2025 Omega Speedmaster Moonwatch Professional Sapphire Black Dial Full 4/25 Ref: 310.30.42.50.01.002](https://preview.redd.it/bfpi8r2scsxe1.jpg?width=640&crop=smart&auto=webp&s=a1f2757ced8bcad94a9fe6985055f13730693282)
New 2025 Omega Speedmaster Moonwatch Professional Sapphire Black Dial Full 4/25 Ref: 310.30.42.50.01.002
This is a brand new Omega Speedmaster Moonwatch Professional with a black dial and sapphire crystal case.
- Condition: 10/10, unworn with stickers
- Diameter: 42mm
- Water Resistance: 50M
- Movement: 3861
![[WTS] Omega Speedmaster Ceramic Apollo 8 Dark Side Of The Moon DSOTM 311.92.44.30.01.001](https://preview.redd.it/78sw46ohzrxe1.jpg?width=640&crop=smart&auto=webp&s=6ff621a1ea9ec1944445b1d5ecc37b0a05e904d4)
Omega Speedmaster Ceramic Apollo 8 Dark Side Of The Moon DSOTM 311.92.44.30.01.001
The Omega Speedmaster Dark Side Of The Moon features a black ceramic case with a laser-ablated Calibre 1869 movement, depicting the moon's surface through the skeletonized dial and exhibition caseback.
- Condition: Truly exceptional
- Case size: 44.25mm
- Movement: Calibre 1869
![[WTS][US] Omega Speedmaster Silver Snoopy - 50th Anniversary - 310.32.42.50.02.001 - Full Set + Bracelet](https://preview.redd.it/6q89ecsxurxe1.jpg?width=640&crop=smart&auto=webp&s=9cc4ae8d2f7b8abdbb0bf885df7cd5e65ca18e0d)
[US] Omega Speedmaster Silver Snoopy - 50th Anniversary - 310.32.42.50.02.001 - Full Set + Bracelet
This Omega Speedmaster Silver Snoopy - 50th Anniversary watch is a full set, including the watch, canvas strap, bracelet, box, manuals, and accessories. It functions perfectly mechanically.
- Condition: Fantastic condition with minor hairlines
- Case Diameter: 42mm
- Water Resistance: 30m
![[WTS] Omega Speedmaster Day Date 40mm 323.30.40.40.06.001 Full set $2850](https://preview.redd.it/ih854va7aoxe1.jpg?width=640&crop=smart&auto=webp&s=f19d80e682f88ffc95c885016143b8c54adc6f85)
Omega Speedmaster Day Date 40mm 323.30.40.40.06.001 Full set $2850
This Omega Speedmaster Day Date features a 40mm case and is in good condition with some minor wear. The watch comes with its full set.
- Condition: Good condition overall with light sign of wear
- Payment Methods: Zelle/Wire
1991 Omega Speedmaster Ref: 3590.50 with Accessories
A 1991 Omega Speedmaster Ref: 3590.50 with a 42mm case, excellent condition black bezel, and tritium dial with creamy yellow patina.
- Condition: Very nice with some wear from use
- Serial number: 48,26X,XXX
- Bracelet size: 20 links (+1 spare) and 633 end links
- Bracelet type: 1171/1 Omega bracelet
1991 Omega Speedmaster Ref: 3590.59 Apollo XI 20th Anniversary with Box and Papers
This is a 1991 Omega Speedmaster Ref 3590.59 Apollo XI 20th Anniversary, a limited edition made for the US market. The watch features a 42mm case with some wear from use and a ding on the side of the 10 o'clock lug.
- Condition: Very good
- Case size: 42mm
- Bracelet type: stainless steel 1479 Omega bracelet
- Links: 23 links and 812 end links