1)All instruments have high quality movement with lifetime warranty.
2)Instrument’s case is made of brass; the opening port is made of high quality alloy. Both of them are polished by hand carefully and with a coating that will never tarnish or scratch.
3)The hinged bezel has a beveled glass lens and screw-down fastener, this allows access to the movements for winding, battery change over or adjustment without removal from the bulkhead.
4)Ordinary weatherproof - GL120,GL122,GL180,GL195 series nautical instrument feature a silicone O-ring seated behind the beveled glass crystal for protection from splash-water intrusion.
5)Waterproof - GL152,GL198 series nautical instrument has a patented full waterproof structure, even be able to work under the surface of water.
6)Quick Fixer System (For GL152 & GL198 series), lets you lock in, or remove, each instrument easily to make adjustments or store it.
7)The aluminous dial can suitable for various weather conditions.
8)All fasteners are made of stainless steel to suitable for ocean condition.
9)Surface finish color available in polished brass, chrome, stainless steel.
10)5 pcs high quality stainless steel mounting screws.
11)One battery included for quartz clock.
12)Save-packing: 4-colors gift box or white box with EPE cushioning material

Base(mm):180

Dial(mm):127

Depth(mm):46

Weight(g):480