The Commando Frogman is aimed at all military, police and commercial divers, as well as outdoor enthusiasts, as it's rugged enough and wearable in any situation. The uni-directional "Dive Time" bezel of the Commando Frogman is special: not only can it display how much time you have left underwater, it has a no-decompression scale, so you can calculate how much time you can spend at what depth without having to decompress.
I found Iguana really friendly, helpful and efficient to both buy the pen and when I had a query - very quick to respond. The pen is gorgeous and I’m now using it every day.