The Longines HydroConquest Collection are high performance watches that merge innovative technology with sophistication and style. New to the collection, this model features a black rubber strap, stainless steel and gold toned 41mm case. Ceramic bezel, black dial. Automatic Calibre L888 movement. Self-winding mechanical movement beating at 25'200 vibrations per hour, with a power reserve of approximately 72 hours. Water Resistant to 300m. Screw-down case back. Ref: L3.781.3.56.9. Founded in 1832, Longines boasts a long tradition of elegance and performance in their timepieces, combining aesthetic with cutting-edge watchmaking technology. Product Information Brand: Longines Movement: Automatic Case Material: Stainless Steel and Gold PVD Case Size: 41mm Type of Strap: Black Rubber Glass Material: Sapphire Crystal Dial: Black Water Resistant: 300m Gender: Mens