Omega · 88 series
8800
A Co-Axial automatic with date, silicon balance spring and a 55-hour reserve.
At a glance
- Type
- Automatic mechanical
- Display / complication
- Date
- Architecture
- Co-Axial escapement, free-sprung balance, bidirectional winding
- Timebase
- Not listed here
- Power reserve
- 55 h
Reference sources reviewed 7 November 2026. Published specifications, not independent measurements. Versions and complete-watch specifications can differ; fields without a verified figure are omitted or identified.
Find it in a watch
Omega Seamaster Aqua Terra 38 mm, 220.15.38.20.55.001
An example from the linked references. Check the exact model and production generation.
What distinguishes it
Look beyond the reference.
The escapement and regulating assembly are central to its character. Omega specifies a free-sprung balance and silicon balance spring; the linked Aqua Terra is Master Chronometer certified and tested for resistance to magnetic fields reaching 15,000 gauss.
For the enthusiast
Compare 8900 for a different architecture with twin barrels and a time-zone adjustment function. A shared brand or Co-Axial label does not make two calibres interchangeable. Watch dimensions in product sheets describe the complete case, so they should never be copied into a movement-height field.