RESERVOIR Hydrosphere

RESERVOIR unveils Hydrosphere, a watch resembling Scuba diving pressure gauges, the first survival instruments for divers. Having a unidirectional, rotating bezel with a double scale, helium valve and power indicator, RESERVOIR’s Hydrosphere asserts its uniqueness with a single needle on the dial.

Dressed in a 45mm diameter 316L steel case and featuring brushed finish, Hydrosphere is waterproof up to 250 meters, also expressed in “2.5 MPa”, the mega-pascal pressure unit equalling a million pascals and in 25 Bar, a pressure unit equivalent to 100,000 pascals.

Hydrosphere Blue hole, RSV03.HY/130-32

The watch features an Operation Indicator that moves in a clockwise direction to show that the watch is in good working order and a Helium Valve that releases helium from the watch during deep dives that require the casing to be decompressed.

Hydrosphere Blackfin, RSV03.HY/130-12

Made from ceramic, the unidirectional rotating bezel of the watch has two scales for reading dive-decompression levels before and after the return of the retrograde hand.
– Use up to 45 minutes: Decompression level reading zone when the retrograde-minute hand is between 0 and 45.
– Use after 45 minutes: Decompression level reading zone when the retrograde hand turns to initial position. It can be read in continuity with the first zone.

Hydrosphere Air gauge, RSV03.HY/130-21

Wrapped in rubber, the watch crown adopts the design from compressed-air valves on diving tanks. The hour window is covered with a magnifying glass to optimise reading visibility, particularly while diving. Superluminova coating ensures the best visibility in the water or at night.

The 316L steel strap has a double push-piece sliding extension for easily adjusting the watch on your wrist when wearing it on a diving suit. Inspired by the watertight marine instrument cases and designed with an additional integrated rubber strap as well as a setting tool.

Technical details

– 45mm, 316L steel case, brushed finish
– Super-luminova black white or blue dial, black hour markers, magnifying glass on the jumping hour window
– Automatic mechanical movement, 37-hour power reserve
– Complications: Retrograde minute, jumping time, power reserve, date
– Patented 124-piece module on ETA 2824-2 calibre
– Anti-reflective sapphire crystal
– Unidirectional rotating ceramic bezel with double scale for reading the dive stop time before and after the return of the retrograde needle
– Helium Valve
– Screw-down case back, screw-down crown, water-resistant to 250m – 316L steel bracelet screwed on the case back, brushed finish with blade folding clasp and extension system
– Additional rubber strap provided

Recommended retail price including VAT
Hydrosphere Air gauge RSV03.HY/130-21: 4250€
Hydrosphere Blue hole RSV03.HY/130-32: 4250€
Hydrosphere Blackfin RSV03.HY/130-12: 4250€

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