AK-01 Uemura (Blue)AKIO watch, more commonly known as the "captain willard" is professional divers 200M water resistant watch with full Seiko NH35 automatic movement. With features such as: 120 click bezel Sapphire Crystal with Blue AR coating Screwdown crown C3 luminova on watch dial & BGW9 on the bezel Stainless Steel Bracelet Movement: Seiko Caliber NH35 Vibrations per hour: 21,600 bph Power Reserve: 41 hours Date window Hacking & Hand winding: Yes Accuracy: Seiko