The Reservoir Hydrosphere Blackfin: case, 45mm x 14.9mm, stainless steel, 250 meter water resistance with helium escape valve. Ceramic bezel insert. Movement, proprietary module with power reserve, jumping
link hour and retrograde minute
link hand, developed by TelĂ´s Watch of La Chaux-de-Fonds; base movement, ETA 2824-2 running at 4Hz/28,800 vph. 37 hour power reserve. Available on a
link stainless steel bracelet, with rubber strap included.