Casio Wave Ceptor

By synchronizing daily with the signals, the Wave Ceptor watches achieve high accuracy, using a quartz crystal to keep time in the interim.

Hybrid Wave Ceptor models support GPS satellite reception of both time and location, in addition to broadcast signals.

[1] Without synchronisation, Wave Ceptors, like other commercial quartz timepieces, are typically accurate to ± 15 seconds per month; daily synchronization ensures 500 ms accuracy.

Later Casio radio-controlled watches are branded as the basic Wave Ceptor and more expensive Lineage and Oceanus lines.

More recent watches that connect to a smartphone with Bluetooth get Internet time from the phone, without requiring long-distance radio reception.

This is default behaviour after a factory reset; the user can choose to use either one of the two transmitters with either module, although this limits use when travelling within Europe.