Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet
Reference 310.30.42.50.01.001
About this watch
The Omega Speedmaster Professional Moonwatch 3861 is a masterpiece that combines timeless elegance with modern technology. Founded in 1848, Omega has been a pillar in the world of horology, synonymous with precision and innovation. From its stunning design to its robust functionality, it encapsulates the spirit of adventure and precision that Omega is known for. The Speedmaster line has always been a favorite, and the 3861 model is no exception. With a diameter of 42 mm, the stainless steel case provides both durability and a polished aesthetic. The tachymeter bezel allows for speed calculations over a known distance, making it not just a pretty face but a functional tool. At the heart of the Speedmaster Professional Moonwatch is the Omega Caliber 3861, a hand-wound movement that's a modern upgrade from previous models, incorporating a co-axial escapement and a silicon balance spring. The craftsmanship is evident in the intricate details of the movement, which you can admire through the closed case back.
Key Features
- Stainless steel case with black matte finish
- 42 mm diameter for a refined yet statement-making size
- Plexi glass for added durability and shock resistance
- Master Chronometer certification by METAS for accuracy and reliability
- Hand-wound Omega Caliber 3861 movement with co-axial escapement and silicon balance spring
- Chronograph function with small seconds, hours, and minutes
- Water resistance of 50 meters for everyday wear
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet
- Reference
- 310.30.42.50.01.001
- Movement
- 3861
- Movement Features
-
- Small Seconds, Hours, Minutes
- Chronograph
- Chronometer
- Case
- Stainless Steel 42mm
- Dial Color
- Black
- Crystal
- Plexi
- Water Resistance
- 50
Current Listings

Omega Speedmaster Professional Tokyo 2020 522.30.42.30.03.001
This Omega Speedmaster Professional Tokyo 2020 is in excellent condition and comes with original boxes and books.
- Condition: Excellent condition
- Warranty card: no warranty card

2022 Omega Speedmaster Pro. Moonwatch 42mm 310.30.42.50.01.002 Black Dial
This is a 2022 Omega Speedmaster Professional Moonwatch with a 42mm stainless steel black dial.
- Condition: Excellent overall condition
- Size: 8.0 inch wrist (Full Links)
- Inclusions: Original Double Omega boxed,Box and Papers,International Warranty card dated 2022,5 year manufacturer warranty,Pictograms & Master Chronometer cards,Operating Instructions,Speedmaster Legendary Moonwatch Booklet,Cleaning Cloth
- Warranty: 5 year manufacturer warranty

NEW 2021 Omega Speedmaster Moonwatch "Ed White" 39.7mm 311.30.40.30.01.001 Black
A new Omega Speedmaster Moonwatch "Ed White" with a black dial, featuring a 39.7mm case size.
- Condition: Brand New/Unworn
- Box And Papers: Yes
- Warranty: 5 year manufacturer warranty
- Size: 8.0inch wrist (Full Links)

2024 Omega Speedmaster Moonwatch Pro. 42mm Stainless Steel White Dial Chrono
The Omega Speedmaster Moonwatch Professional is a stainless steel watch with a white dial and chronograph function, featuring a 42mm case size.
- Condition: excellent overall condition
- Case Size: 42mm diameter

Omega SPEEDMASTER PROFESSIONAL MOONWATCH WHITE DIAL 2024 WARRANTY FULL SET
New 2024 model Omega Speedmaster Professional Moonwatch with stainless steel case and white dial.
- Condition: Excellent, unpolished condition
- Movement: Manual-winding chronograph 3861 with co-axial escapement
- Case diameter: 42mm
- Crystals: Sapphire crystals

2014 Omega Speedmaster Ref. 326.30.40.50.01.001 with Box & Papers
The Omega Speedmaster Ref. 326.30.40.50.01.001 features a classic 40mm stainless steel case powered by the Co-Axial Calibre 3330, with a sporty black dial and black sub dials for an automotive-inspired look.
- Condition: Excellent (very little to no signs of wear)
- Case size: 40mm
- Movement type: Automatic
- Depth rating: unknown (no depth rating mentioned)

2023 Omega Speedmaster Moonwatch Pro 42mm Yellow Gold Green Dial
This is a 2023 Omega Speedmaster Moonwatch Pro in yellow gold with a green dial, featuring a 42mm case size and Master Chronometer certification.
- Condition: Excellent
- Warranty Years: 5
- Case Size: 42mm
Omega Speedmaster Moonphase 42mm 3575.20 (2001 Box and Papers)
A pre-owned Omega Speedmaster Moonphase with a 42mm case size, featuring a moon phase display. The watch is in great condition, but shows some signs of wear.
- Condition: Pre-owned, slight wear on bracelet and clasp, marks on bezel
- Case Size: 42mm
- Bracelet Links: 16.5 links
- Service History: Unknown ( -5 s/d, 230+ AMP)
Omega Speedmaster Hesalite 42mm 3572.50 (Watch and Card)
A 42mm Omega Speedmaster Hesalite is being listed in great pre-owned condition, featuring a micro-scratched hesalite crystal and some nicks by the tachymeter. The watch includes 15.5 links and a warranty card.
- Condition: Pre-owned, with minor scratches and nicks on the hesalite crystal
- Service history: Unknown
- Water resistance: +13 s/d (not specified)
- Movement amp hours: >280