IWC · 52000
52616
A seven-day automatic perpetual calendar with a four-digit year and moon phases for both hemispheres.
At a glance
- Type
- Automatic mechanical
- Display / complication
- Perpetual calendar
- Architecture
- Pellaton automatic winding, power-reserve display and perpetual calendar
- Timebase
- 28,800 vph / 4 Hz
- Power reserve
- 168 h
- Jewels
- 54
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
IWC Big Pilot’s Watch Perpetual Calendar TOP GUN Ceratanium IW503604
An example from the linked references. Check the exact model and production generation.
What distinguishes it
Look beyond the reference.
A perpetual calendar accounts for the different month lengths and ordinary leap years. It is a different level of calendar programming from an annual calendar; setting and exceptional-century corrections still require the relevant instructions.
For the enthusiast
IWC lists 52616 in the cited current Big Pilot reference, with 379 components and seven days of reserve. Keep it distinct from the older 52615 and from IWC’s Eternal Calendar movements.