Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / White / Sapphire / Bracelet
Reference 310.30.42.50.04.001
About this watch
The Omega Speedmaster Professional Moonwatch 3861, reference number 310.30.42.50.04.001, is a stunning timepiece that blends functionality with elegance. Designed for both everyday wear and special occasions, this watch boasts a rich history, a robust build, and a breathtaking aesthetic that easily draws attention. The pristine white dial exudes sophistication, while the stainless steel case measures 42 mm in diameter, striking the perfect balance between presence and wearability. The open case back showcases the intricate workings of the Caliber 3861 movement, highlighting the beauty of Swiss craftsmanship. This watch is more than just a timekeeper; it's a piece of history, a testament to Omega's commitment to precision and style.
Key Features
- Omega Caliber 3861 Movement
- Master Chronometer Certification
- Sapphire Crystal Glass
- Tachymeter Bezel for Speed Measurement
- Water Resistance up to 50 meters
- Co-Axial Escapement for Improved Accuracy and Longevity
- Manual-Winding Chronograph Movement with Power Reserve of 50 hours
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch 3861 Stainless Steel / White / Sapphire / Bracelet
- Reference
- 310.30.42.50.04.001
- Movement
- 3861
- Movement Features
-
- Small Seconds, Hours, Minutes
- Chronograph
- Chronometer
- Case
- Stainless Steel 42mm
- Dial Color
- White
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings
![[WTS] Omega Speedmaster “First Omega in Space” FOISRef: 310.30.40.50.06.001 | 2025 | Full Set | Very Good Condition | Active Factory Warranty](https://preview.redd.it/y1kyki1lrf8g1.jpg?width=640&crop=smart&auto=webp&s=bc0838ec47c0cc4230b545962a8eb0300c179a21)
Omega Speedmaster “First Omega in Space” FOISRef: 310.30.40.50.06.001 | 2025 | Full Set | Very Good Condition | Active Factory Warranty
This Omega Speedmaster is known as the 'First Omega in Space' with a FOIS reference number, specifically Ref: 310.30.40.50.06.001, from the year 2025.
- Condition: Very Good
![[WTS] Omega Speedmaster Moonwatch Professional White dial Black rubber strap 42mm Box & Papers 310.32.42.50.04.001](https://preview.redd.it/mcdej32bgf8g1.jpg?width=640&crop=smart&auto=webp&s=578a2e60a6affe94e67de482dae6ae2c8ab9a7d0)
Omega Speedmaster Moonwatch Professional White dial Black rubber strap 42mm Box & Papers 310.32.42.50.04.001
This Omega Speedmaster Moonwatch Professional features a white dial on a black rubber strap, with a 42mm case and various complications including a chronograph and tachymeter.
- Condition: Excellent
- Case Material:
- Diameter: 42mm
- Water Resistance:
![[WTS] Omega Vintage Speedmaster Bracelet 1496 (18mm end-links)](https://preview.redd.it/seynkfxrbf8g1.jpg?width=640&crop=smart&auto=webp&s=22d94fe296d281534111399c2c35da94331863ba)
Omega Vintage Speedmaster Bracelet 1496 (18mm end-links)
Up for sale is my Omega 1496 bracelet with 18mm endlinks (ref#813) that I had on my Speedmaster Reduced, now collecting dust.
- Condition: good shape for its age
- End links size: 18mm
![[WTS] Omega Speedmaster. 39mm. Automatic. $1550 only !!](https://preview.redd.it/zia60j153e8g1.jpeg?auto=webp&s=6308933ec939373a03878934f928a76103e0e8a2)
Omega Speedmaster. 39mm. Automatic. $1550 only !!
This Omega Speedmaster is a 39mm automatic chronograph watch with an AM strap.
- Condition: Very nice
- Case Size: 39mm diameter
- Movement Type: Automatic
![[WTS] 1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract](https://external-preview.redd.it/l8DDFtmJVJnFvF9famKVm67DnsH6mB5c_b1MR5QdNYw.jpeg?auto=webp&s=bf4f63d23645431d43113e057cef34cb2d9f6e4f)
1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract
A 1991 Omega Speedmaster Moonwatch with a caliber 861 movement and tritium dial and hands, in excellent condition and appearing unpolished.
- Condition: Excellent, unpolished
- Movement: Caliber 861
- Serial number: 482774XX
- Bracelet size range: fits wrists over 7.5"
![[WTS] Omega Speedmaster Broad Arrow 321.10.42.50.01.001 2019](https://preview.redd.it/549g304s178g1.jpg?width=640&crop=smart&auto=webp&s=a9210c8d4582321f7d84ca46b0a7a9c093f2977d)
Omega Speedmaster Broad Arrow 321.10.42.50.01.001 2019
This Omega Speedmaster Broad Arrow is a 2019 model with a crisp case and running perfectly, featuring a massive bracelet.
- Condition: Incredible-condition
- Dimensions: 42mm diameter
- Year: 2019
![[WTS] Omega Speedmaster. Broadarrow. Clean. 🔥](https://preview.redd.it/fqa0nx5mo68g1.jpeg?auto=webp&s=6de94360bc084bcf99c038e903e674ee0802d307)
Omega Speedmaster. Broadarrow. Clean. 🔥
The Omega Speedmaster is a classic watch with a broadarrow design, featuring strong lume.
- Condition: Very clean and strong lume
- Location: NJ USA
![[WTS] DISCONTINUED OMEGA SPEEDMASTER RACING (Ref. 331.12.42.51.03.001)](https://preview.redd.it/fmrq77cn768g1.jpg?width=640&crop=smart&auto=webp&s=8e9ac994e85d1fd74cac0acfb6b0980ec1251ba1)
DISCONTINUED OMEGA SPEEDMASTER RACING (Ref. 331.12.42.51.03.001)
This Omega Speedmaster Racing is a discontinued model from 2023 in very good condition and comes with several accessories.
- Condition: Very good, lightly used
![[WTS] Omega Speedmaster Quartz LCD](https://preview.redd.it/lykvzanwa18g1.jpg?width=640&crop=smart&auto=webp&s=a15231da9e20eb9c402eb96acc7617827d1f70bb)
Omega Speedmaster Quartz LCD
a quartz-powered watch with an LCD display