To prevent corrosion from seawater and sea breeze, this model employs a rust-resistant structure, utilizing titanium for all metal parts exposed to the outside, including screws, buckles, and even button shafts hidden from view. This allows it to perform to its full potential in the harsh marine environment. The world's five-station radio wave reception function provides peace of mind for long-distance voyages. Furthermore, the dual illuminator, which lights up both the LCD and the dial, enhances visibility at sea during the pitch-black night. Design Highlights: 1. The titanium bezel, with its precise knurling and hairline finish, guards the crystal from frontal impact. 2. Urethane parts with a multi-faceted form reminiscent of armor cover the entire case, repelling impacts. 3. A forged titanium back with a folded shape enhances bending strength and provides a sense of weight. 《CASIO G-SHOCK GULFMAN G-9100》 Water Resistance: 20-bar water resistance Time Adjustment: Radio-controlled watch (Japan, North America, Europe, and China) Power Source: Tough Solar (solar charging system) Structure: Shock-resistant structure, rust-resistant structure Band: Resin band 《Watch Functions》 World Time Stopwatch Timer Alarm Light Date ⚫︎Operation confirmed. ⚫︎One owner. ⚫︎No accessories. Only the watch will be shipped. ⚫︎Please note that the color and texture of the actual product may differ from the photos. ⚫︎Maintenance, if required, is the responsibility of the buyer. ⚫︎This is a used item, so please consider this before purchasing. ⚫︎Cancellations, returns, and claims are not accepted after purchase, so please consider carefully.