Reservoir Hydrosphere Blackfin model RSV03.HY/130-21.BH. Inspired by the pressure gauges of the first divers. Blue dial with Arabic numerals. Stainless steel case and bracelet. Comes with additional blue rubber strap. Watch features: retrograde minute hand; jumping hours; power reserve indicator. Water resistant to 250 meters.
Movement:
124-part proprietary module powered by the ETA 2824-2, feature a retrograde minute hand, a jumping hour and a power reserve.
Functions:
Power Reserve hand indicator. Date calendar, window display. Jump hour function. Retrograde minute hand.
Case:
Solid AISI 316L Stainless steel.
Bezel:
Black color. Ceramic hi-tech material, extremely scratch-resistant. Unidirectional rotating bezel with double scale for reading the time at different diving depths before and after the retrograde minute hand's return.
Crown:
Sport style, screw-down (threaded). Factory Logo engraved/embossed. Helium Valve.
Crystal:
Sapphire. Anti-Glare treated. Magnifier on the jumping-hour window.
Case Back:
Screw-on style ( held by screws ). Factory Engraved/Raised Logo.
Clasp:
Tri-fold, Sport style, with security flip-lock and over-the-wetsuit expansion. Factory Logo engraved/embossed.
Water Resistance:
200m/660ft/20atm.