Omega caliber 3861
Brand: | Omega |
---|---|
Reference: | 3861 |
Base: | Lemania 1873 |
Movement: | Handwound |
Display: | Analog |
Diameter: | 27.00 |
Jewels: | 26 |
Reserve: | 50 |
Frequency: | 21600 |
Chronograph: | Chronograph |
Hands: | Small Seconds, Hours, Minutes |
Additionals: | Chronometer |

3861 description
Caliber 3861 is an updated version of caliber 861 / 1861. It features a co-axial escapement and a silicon balance spring. It is Master Chronometer certified by METAS.
Manual-winding chronograph movement with Co-Axial escapement. Certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000 gauss. Free-sprung balance with silicon balance spring. Either gold plated finish or rhodium-plated finish, bridges with straight Geneva waves.
BPH to be comfirmed
All watches using the Omega 3861 movement:

310.20.42.50.01.001
Omega Speedmaster Professional Moonwatch Apollo 11 50 Anniversary Stainless Steel / Moonshine Gold

310.60.42.50.99.001
Omega Speedmaster Professional Moonwatch Apollo 11 50 Anniversary Moonshine Gold

310.30.42.50.01.001
Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet

310.32.42.50.01.001
Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Fabric

310.32.42.50.01.002
Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Calf

310.60.42.50.01.001
Omega Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Bracelet

310.63.42.50.01.001
Omega Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Alligator

310.63.42.50.02.001
Omega Speedmaster Professional Moonwatch 3861 Canopus Gold / Silver / Alligator

310.60.42.50.02.001
Omega Speedmaster Professional Moonwatch 3861 Canopus Gold / Silver / Bracelet

310.30.42.50.01.002
Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Bracelet

310.32.42.50.02.001
Omega Speedmaster Professional Moonwatch Apollo 13 50th Anniversary Snoopy

310.60.42.50.10.001
Omega Speedmaster Professional Moonwatch 3861 Moonshine Gold / Green / Bracelet

310.63.42.50.10.001
Omega Speedmaster Professional Moonwatch 3861 Moonshine Gold / Green

310.60.42.50.99.002
Omega Speedmaster Professional Moonwatch 3861 Moonshine Gold / Moonshine Gold / Bracelet

310.62.42.50.99.001
Omega Speedmaster Professional Moonwatch 3861 Moonshine Gold / Moonshine Gold