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
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1989 Omega Speedmaster Automatic 175.0032. Vintage Speedy | Runs well
A vintage Omega Speedmaster Automatic from 1989, featuring incredible tritium lume patina and a few variations in caseback and bracelet.
- Condition: Excellent, with honest but light wear
- Caseback variations: multiple caseback designs available for this reference
- Bracelet variations: multiple bracelet options available for this reference
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Omega Speedmaster First Omega In Space FOIS 40mm 310.30.40.50.06.001 | 8/2025 Full Set
This is a 40mm Omega Speedmaster First Omega In Space (FOIS) with a Master Chronometer certification.
- Condition: Pre-Owned, Great Condition
- Bezel condition: Clean
- Crystal condition: Clean
- Bracelet length: 23 Links
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Omega Speedmaster 38 324.30.38.50.01.001 | 2024 Full Set w/ Extra OEM Strap
A 2024 Omega Speedmaster 38 with a slight scratching on the anti-reflective coating, available for sale in excellent condition with extra OEM strap and various other accessories.
- Condition: Pre-Owned | Slight scratching on AR Coating
- Water resistance: 350 AMP
![[WTS] 2024 Omega Speedmaster “First Omega in Space” 310.30.40.50.06.001 – Full Set + Extra Uncle Bracelet – $6,950 Shipped](https://preview.redd.it/sfqt8qt2r7dg1.jpg?width=640&crop=smart&auto=webp&s=38f8d54fe7f23844eeabb381af9edffeeb90386b)
2024 Omega Speedmaster “First Omega in Space” 310.30.40.50.06.001 – Full Set + Extra Uncle Bracelet – $6,950 Shipped
A modern reissue of the Speedmaster worn by Wally Schirra during the Sigma 7 mission, featuring a slimmer 39.7mm case and vintage-inspired aesthetic.
- Condition: Excellent
- Case size: 39.7mm
- Movement: Omega Caliber 3861, Manual-wind chronograph
- Crystal: Sapphire
![[WTS] 20mm Omega Integrated Speedmaster Black Rubber Strap & Omega Clasp - (Backordered) 2. 20mm Omega SMP 300 Black Rubber Strap & Omega OEM Clasp](https://preview.redd.it/qhv5hyrx27dg1.jpg?width=640&crop=smart&auto=webp&s=6906808af017803841e491a8d82eecabb76e5f5d)
20mm Omega Integrated Speedmaster Black Rubber Strap & Omega Clasp - (Backordered) 2. 20mm Omega SMP 300 Black Rubber Strap & Omega OEM Clasp
The seller is offering two Omega watch straps for sale: a black rubber strap with integrated Speedmaster design and an SMP 300 Black Rubber Strap. Both straps are OEM and come with their respective clasps.
- Strap Type1: Integrated Speedmaster Rubber Strap
- Strap Type2: SMP 300 Black Rubber Strap
- Clasp Type1: Omega OEM Stainless Steel Deployant Clasp
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Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫
The Omega Speedmaster Moonwatch 145.022-69 features a super tropical brown dial with heavy yellow patina, a deep blue bezel, and tritium that glows green under UV light.
- Condition: Very rare and fully original, beautiful condition
- Case size: 42mm
- Year of production: 1969
- Movement serviced: November 2025
![[WTS] Omega Speedmaster white dial on bracelet with oem rubber included](https://preview.redd.it/fkhii9zx66dg1.jpg?width=640&crop=smart&auto=webp&s=6f83ecac21e5c8b2f98a563166077a59b1eeaf73)
Omega Speedmaster white dial on bracelet with oem rubber included
A white Omega Speedmaster on bracelet, sold in good condition with some minor cosmetic issues.
- Condition: Good condition with some swirls and light scratches (8.5/10)
- Box And Papers: Full kit
- Purchase Receipt: Original
![[WTS] Omega Speedmaster. Sapphire Sandwich. Automatic. Box, Papers.](https://preview.redd.it/k5o58bwiv5dg1.jpeg?auto=webp&s=ef0aca6d713a8c724c077e5bc61d4e4d2b23c659)
Omega Speedmaster. Sapphire Sandwich. Automatic. Box, Papers.
Omega Speedmaster, also known as the Sapphire Sandwich, is a high-end automatic watch that features strong lume.
- Water Resistance: 30m
- Box And Papers: true
![[WTS] Omega Speedmaster Sapphire](https://preview.redd.it/v8ad7gi6c4dg1.jpg?width=640&crop=smart&auto=webp&s=a9402943d151a9e869f7aee5782a75b4fd6ef125)
Omega Speedmaster Sapphire
A Omega Speedmaster Moonwatch listed for sale, stated to run great with excellent case condition.
- Condition: Excellent
- Case condition: Excellent