Speaking of power, the AquaMatics feature a Sellita SW220-1 automatic movement, which ticks link at 4Hz, has about 41 hours of power reserve link and offers Swiss timekeeping at a price where Miyota has become much more common. It's not a fancy movement, but they are reliable, easily serviced, and generally fuss-free. Just what one wants from a dive link watch, and Farer continues to offer a five-year warranty for their watches.