Mercedes Benz Motorsport Racing AMG DTM Pilot Aviator Sport Car Accessory Watch
It secures on your wrist with a stainless steel buckle. A screw-on stainless steel back makes the watch water resistant to 10 ATM. On a side-note: only very few specially trained and equipped divers reach depths of 100 m and wear professional computers to indicate the life-saving compression- and decompression data; at such depths, normal watches will just not do.