This is a new, larger, stronger built version of the extremely popular Orient Mako. The Mako II has a larger case size (46mm), an improved and beefier bracelet, a larger uni-directional bezel with easier to read numbers, and larger hour markers that are treated with luminous material. The second hand is now moon-shaped and luminous to help let you know your watch is operating under water and in the dark. Inside is the "bullet-proof" Orient 21-jewel automatic (self-winding) movement. Features a screw-down crown and case back. Case: Solid stainless steel, both polished and brushed, 46mm  (w/o crown), 13mm thick. Band: Solid stainless steel, deployant closure with pushbutton release, 22mm. Water Resistance: 20 ATM.Upgraded 120 click bezel.