Citizen watch eco drive promaster navihawk cc9030 51e citizen breaks the boundaries in satellite technology once again with the promaster navihawk gps in stainless steel with black dial and sapphire crystal featuring satellite gps timekeeping technology with synchronised time adjustment available in 40 time zones the worlds fastest timekeeping signal reception speed from gps navigation satellites as quick as 3 seconds world time in 27 cities 120 second chronograph measuring up to 24 hours