Orient has been making its own mechanical movements for about 50 years. Among its top models is this highly functional diver watch in a large 45.7mm-wide chunky steel case. The thick case and sapphire crystal give this Japanese watch 300 meters of water resistance, and obviates the need for a helium release valve. The watch contains a durable automatic Orient Caliber 46N4A automatic movement with date and power reserve indicators, as well as a special micro adjusting ratcheting diver’s extension on the steel bracelet. Easy to read, the attractive dial is available in black or orange, and is tough to beat as a solid diver’s watch.

Source:http://www.askmen.comOrient 300M Diver Watch