Too many to list… (Add your watch in the comments below)
The Omega calibre 8800 is an in-house automatic movement that made a splash as the engine that powers the updated Seamaster Pro 300M (aka SMP) in March 2018 at Baselworld. It is Swiss made with 35 jewels. This movement features an anti-magnetic hairspring, Co-Axial escapement and twin barrels for extended power reserve.
Some of the topics covered in this caliber listing:
In Omega’s own words:
“Self-winding 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, automatic winding in both directions. Rhodium plated finish with Geneva waves in arabesque.” –source
The Omega 8800 serves as the base movement for several other calibers including:
8801 – Same specs as the 8800 with the main difference being an 18K Sedna gold balance bridge and oscillating weight (rotor)
8807 – Same specs as 8806 but with an 18K Sedna gold balance bridge and oscillating weight
It used to be that the Omega caliber 8508 got all of the credit for being resistant to magnetic fields, but now most of the newer movements such as the calibre 8800 being discussed here, are anti-magnetic up to 15,000 gauss thanks to the silicone balance spring and materials that are not affected by exposure to magnetism.
The Omega caliber 8800 is an in-house movement and not available for individual purchase, even for Swatch Group parts accounts. At the time of this post, the retail prices of the watches this movement powers ranges from $8,300 USD to $14,000 USD.