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.
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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 Moonwatch Two-Tone Sedna Gold 310.20.42.50.99.001](https://preview.redd.it/xd1b84mg7n6g1.jpg?width=640&crop=smart&auto=webp&s=56bcc0de991262be12f8fbebd70df61848c52d5d)
Omega Speedmaster Moonwatch Two-Tone Sedna Gold 310.20.42.50.99.001
No description provided in the title or additional details.
- Case material: Two-Tone Sedna Gold
![[WTS] Omega Speedmaster Moonphase 2024 Box and Papers with AD Receipt](https://preview.redd.it/25kvhveqs87g1.jpg?width=640&crop=smart&auto=webp&s=3c3f903447922013fcbab25b217d01ae72515ec1)
Omega Speedmaster Moonphase 2024 Box and Papers with AD Receipt
- Year: 2024
- Box Papers: yes
![[WTS] Omega Speedmaster FOIS, Numbered Edition, Very Clean (2017), $4200 shipped](https://preview.redd.it/tkdrwz9c787g1.jpg?width=640&crop=smart&auto=webp&s=fa96d4aac02c03d6b3e7cea25b0d8ca0418ba5de)
Omega Speedmaster FOIS, Numbered Edition, Very Clean (2017), $4200 shipped
This Omega Speedmaster FOIS is a numbered edition from 2017 with a very clean and smooth action.
- Condition: Very good
- Caliber: Omega 1861
- Power reserve: 48 hours
- Case dimensions: [object Object]
![[WTS] Omega Dark Side of the Moon Speedmaster 311.92.44.30.01.001](https://preview.redd.it/mtmg00c2487g1.jpg?width=640&crop=smart&auto=webp&s=aca75483940438afe691ba22b1638cebb9fa154b)
Omega Dark Side of the Moon Speedmaster 311.92.44.30.01.001
The Omega Speedmaster Dark Side of the Moon features a black zirconium oxide ceramic case, bezel, and crystal, with a black dial and applied indices.
- Condition: Great overall with light signs of use on the strap
- Case size: 44.25mm diameter
- Movement: Omega Co-Axial Calibre 9300 automatic chronograph
![[WTS] Omega Speedmaster Professional Moonwatch model 145.022 78 ST fully serviced.](https://preview.redd.it/tylvglrg677g1.jpg?width=640&crop=smart&auto=webp&s=7b679cc4f5d2e8b61540895f10599fdb22371ecc)
Omega Speedmaster Professional Moonwatch model 145.022 78 ST fully serviced.
This is a description of the Omega Speedmaster Professional Moonwatch model 145.022 78 ST that has been fully serviced.
![[WTS] 2022 Omega Speedmaster Chronoscope Co-Axial Master Chronometer 329.30.43.51.02.001](https://preview.redd.it/ri4u0mksk67g1.jpeg?auto=webp&s=8d7ce8ce59fc6ac67e162d682e2dce9383302125)
2022 Omega Speedmaster Chronoscope Co-Axial Master Chronometer 329.30.43.51.02.001
A 2022 Omega Speedmaster Chronoscope Co-Axial Master Chronometer in good working order and excellent cosmetic condition. It comes with box and papers dated 2022.
- Condition: Great condition overall
- Case size: 43mm diameter
- Movement: Co-Axial Master Chronometer
- Box and papers included: yes
![[WTS] Omega Speedmaster Professional 42mm “Sapphire Sandwich” 310.30.42.50.01.002 - 11/2025 Complete Set](https://preview.redd.it/eyse9yzel27g1.jpg?width=640&crop=smart&auto=webp&s=6b80af957bcc36b8db894a73b7a3c68bedf8303f)
Omega Speedmaster Professional 42mm “Sapphire Sandwich” 310.30.42.50.01.002 - 11/2025 Complete Set
This Omega Speedmaster Professional 42mm is a 'Sapphire Sandwich' model with a complete set, including a serial tag and master chronometer certification.
- Condition: Like New
- Case Size: 42mm
![[WTS] Omega Speedmaster Broad Arrow 42mm Olympics (Milano Cortina Killer for Half the Price 🔥) - Blue Spiralwinder Ceramic Bezel - F.Piguet Based Column Wheel Coaxial Chrono - Forstner Bullet - Blued Hands - Moonwatch Proportions - Only $3,050 Shipped CONUS](https://preview.redd.it/8nab5bjre27g1.jpg?width=640&crop=smart&auto=webp&s=5aeb9f8de319977638a42cd2a6465e3ebb47c42d)
Omega Speedmaster Broad Arrow 42mm Olympics (Milano Cortina Killer for Half the Price 🔥) - Blue Spiralwinder Ceramic Bezel - F.Piguet Based Column Wheel Coaxial Chrono - Forstner Bullet - Blued Hands - Moonwatch Proportions - Only $3,050 Shipped CONUS
This Omega Speedmaster Broad Arrow features a white gloss dial with heat-blued hands and an Olympic Games caseback. It has 100m water resistance and is powered by the Co-Axial Caliber 3313 column-wheel automatic chronograph.
- Movement: Omega Co-Axial Caliber 3313, column-wheel automatic chronograph based on the F. Piguet 1285 architecture
- Bracelet: Forstner Bullet bracelet, 200m water resistance (100m WR)
- Depth Rating: 100m WR
![[WTS] Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET](https://preview.redd.it/1pzorgw3z17g1.jpg?width=640&crop=smart&auto=webp&s=180afcfe4c90bf3baba1ca3343a1341f46dd90b6)
Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET
This is a 2019 Omega Speedmaster Dark Side of the Moon with a full-ceramic case and buckle, available in mint condition.
- Condition: Mint, like-new condition
- Case material: full ceramic
- Year: 2019