Alpina Men's Seastrong Rubber Strap watch, Silver-Tone dial

The Seastrong Diver Extreme Automatic GMT. One movement and three-time bands. The GMT is displayed with a second central hours hand-known as the 'home time zone'-while the central hours, minutes and seconds hands denote the time wherever the wearer is on their travels; the date window at 6 o'clock is naturally synchronized with this time band. No additional controls are required to operate the GMT function: everything is done via the single, secure screw-crown at 3 o'clock.