IWC Aquatimer ref IW3723-04 Split Minute Chronograph (Pre-Owned)One of the most divery divers out there this over the top Aquatimer has the guy covered who has some major timing to do! The IWC reference IW3723 features three different ways to measure elapsed time. 1. Rotating an Inner Bezel by way of twisting the pusher at the 4 o'clock subdial. 2. A 12 hour Chronograph 3. A "Split Minute" complication whereby toggling the trigger at the 8 o'clock position freezes the black and yellow hand in place (seen in the