Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink
Reference 310.20.42.50.99.001
About this watch
The Omega Speedmaster Professional Moonwatch 310.20.42.50.99.001 is a stunning blend of tradition and innovation, featuring a unique Sedna Gold and pink finish. Its 42mm stainless steel case and Sedna Gold accents command attention, while the remarkable Omega caliber 3861 movement boasts a co-axial escapement, reducing friction for enhanced accuracy and longevity. Certified by METAS as a Master Chronometer, this watch can resist magnetic fields reaching an impressive 15,000 gauss. The sunburst pink finish adds sophistication, making it perfect for both casual and formal settings.
Buy Now on Jomashop
This is an affiliate link
Key Features
- Omega caliber 3861 movement
- 42mm stainless steel case
- Sedna Gold accents
- Co-axial escapement
- Master Chronometer certified by METAS
- 50m water resistance
- Chronograph function
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink
- Reference
- 310.20.42.50.99.001
- Movement
- 3861
- Movement Features
-
- Small Seconds, Hours, Minutes
- Chronograph
- Chronometer
- Case
- 42mm
- Dial Color
- Pink
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings
![[WTS] Omega Speedmaster Racing 326.30.40.50.03.001](https://preview.redd.it/j259226j96xg1.jpg?width=640&crop=smart&auto=webp&s=6444ced954001ce2d03290d1142573e20020737d)
Omega Speedmaster Racing 326.30.40.50.03.001
For sale is an Omega Speedmaster Racing, in great condition with some light wear around the watch.
- Condition: great condition with some light wear
- Payment Methods Accepted: pretty much every payment method including crypto
- Local Meet Available: yes
![[WTS] Omega Speedmaster Date 38.5mm 3513.54](https://preview.redd.it/o6sgrlko86xg1.jpg?width=640&crop=smart&auto=webp&s=9e3529ac8402405f5bb64f009b62462320b2a6d1)
Omega Speedmaster Date 38.5mm 3513.54
For sale is an Omega Speedmaster Date 38.5mm reference number 3513.54, in good condition, from 1998.
- Condition: good with some wear and small marks
- Year of production: 1998
- Case size: 38.5mm
![[WTS] Omega Speedmaster Reduced 3510.50](https://preview.redd.it/lnykkhpx56xg1.jpg?width=640&crop=smart&auto=webp&s=aa5e42a65deb97ee6a9eef0da9505d91a9065bed)
Omega Speedmaster Reduced 3510.50
For sale is an Omega Speedmaster Reduced 3510.50 in great condition, with some minor wear and fading on the bezel.
- Condition: Great condition with some light wear and fading on the bezel
- Payment Methods Accepted: Various payment methods including crypto with a small fee, excluding PayPal
- Local Pickup Available: Yes, located in southwest FL
- Trading Possible: Yes, only with brands Tudor, Cartier, Rolex, Omega, Breitling, AP
![[WTS] 2026 Omega Speedmaster Professional White Dial 310.32.42.50.04.002 Full Set $7,300](https://preview.redd.it/krybhbjl36xg1.jpg?width=640&crop=smart&auto=webp&s=b0e3fc157b8e34264357a60661bf42b3116f2829)
2026 Omega Speedmaster Professional White Dial 310.32.42.50.04.002 Full Set $7,300
A modern Omega Speedmaster Professional with a lacquered white dial, powered by the Co-Axial Master Chronometer Calibre 3861, featuring a clean and high-contrast look while maintaining the iconic Speedmaster design.
- Condition: Like new
- Case size: 42mm diameter
- Case material: Stainless steel
- Movement: Manual wind (Omega Calibre 3861 Master Chronometer)
![[WTS] Omega Speedmaster ‘57 reference 331.12.42.51.01.001 - Complete set with hang tag, undated](https://preview.redd.it/f32y8cpys5xg1.jpg?width=640&crop=smart&auto=webp&s=9a8bab4cc3c7cf5959ef3b7750de2911e75b6fe6)
Omega Speedmaster ‘57 reference 331.12.42.51.01.001 - Complete set with hang tag, undated
For sale is an Omega Speedmaster '57 reference 331.12.42.51.01.001, complete set with hang tag and undated.
- Condition: undated
- Diameter: 42mm
![[WTS] 2025 Omega Speedmaster Racing 329.32.44.51.06.001 44MM Full Set](https://preview.redd.it/jqduxu50d5xg1.jpg?width=640&crop=smart&auto=webp&s=8deae4882e10508618038273b03761ff17bf2af0)
2025 Omega Speedmaster Racing 329.32.44.51.06.001 44MM Full Set
This is a 2025 Omega Speedmaster Racing Chronograph with a silver/grey dial and a 44mm case size. It comes as a full set with box, papers, and warranty coverage through January 2030.
- Condition: Excellent
- Case Size: 44mm diameter
- Box And Papers: true
![[WTS] 2025 Omega Speedmaster Professional Sapphire](https://preview.redd.it/4w8awycw75xg1.jpg?width=640&crop=smart&auto=webp&s=e607ec239e37165ba4c0861937d63c09dba8b604)
2025 Omega Speedmaster Professional Sapphire
This Omega Speedmaster Professional Sapphire is being sold with a full kit and has been pressure tested at the Omega AD in April. It comes with a luna replica NASA velcro strap for reference.
- Purchase History: purchased from this subreddit
- Inclusions: full kit, luna replica NASA velcro strap
- Wrist Size Reference: 6.5"
![[WTS] Omega Speedmaster Reduced 3510.50 Bracelet Set - 22 Links, Full size, 94/100 Condition, OEM 1469/811](https://preview.redd.it/taikxlm415xg1.jpg?width=640&crop=smart&auto=webp&s=f245081162d357c47d7b6b3809af19d26af75cb0)
Omega Speedmaster Reduced 3510.50 Bracelet Set - 22 Links, Full size, 94/100 Condition, OEM 1469/811
This is an original Omega Speedmaster Reduced bracelet set in excellent condition, featuring a stainless steel finish and a folding clasp with tight action.
- Condition: 94/100 - excellent vintage condition
- Bracelet reference: 1469
- Endlinks reference: 811 (pair included)
- Total links: 22 (full complete set)
![[WTS][US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set](https://preview.redd.it/m3izndiju4xg1.jpg?width=640&crop=smart&auto=webp&s=d11e2103db56fbc3968db4eeff3f6a5576d0227e)
[US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set
A Omega Speedmaster Calibre 321 in black dial, with a 39.7mm case size and reference number 311.30.40.30.01.001.
- Condition: pristine with minor hairlines on clasp, case, and bracelet
- Diameter: 39.7mm