Citizen Diver 52-0110

Citizen diver 52-0110 150m diver.
Housing a Japanese miyota automatic movement. Clean dial with Citizen logo in metal and mercedes hands.
This look like a chunky tudor no crown guard IMHO. With a thick oyster bracelet the watch wear with a solid feel.

Wittnauer/Hamilton/..Compressor

These 36 mm compressors, not only wear on a small wrist with great comfort it is also great looking. The smaller version compare to the JLC compressor.
One of the Wittnauer has military marking. Will research for more pictures to show military divers are issued with these watches. Benrus "Ultra-Deep" has military history to it too.

UNO automatic diver

UNO is an Italian brand (correct me if i am wrong). This is an automatic diver depth to 20 ATM. No crown guard, look like the older seamaster 120 diver watches.