Longines HydroConquest GMT L37904566 Watch with Black Dial and Time Zone Mechanism This dark Longines HydroConquest GMT watch features a stylish black dial, black ceramic bezel and grey steel bracelet. The black dial has silver-colored hands and indexes, as well as distinctive red details. With the watch's GMT hand, it is possible to monitor two time zones at the same time. The watch has a date display at three o'clock. The watch from the HydroConquest collection has an automatic movement with a 72-hour power reserve and a scratch-resistant sapphire crystal with an anti-reflective coating. The watch is water-resistant up to 300 meters, so it is also suitable for diving. The 60-minute scale on the bezel, which rotates in one direction, and the screw-locking crown are also suitable for diving. Model number: L37904566 Shell material: stainless steel Shell color: steel gray Shell diameter: 41 mm Watch thickness: 12.9 mm Bezel material: ceramicBezel color: blackStrap material: stainless steelStrap color: greyLug distance: 21 mm Watch weight: 180.5 g Sapphire glass, scratch-free Dial color: black Time zone mechanism Water resistance: 300 meters (30 bar) Date display Movement: automaticPower reserve up to 72 hours See all Longines watches here