Gruppo Gamma

Chrononaut C-01R

$625.00 USD

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In 1956 Ervin Piquerez SA designed the "Super Compressor" watch case that, with its unique sealing method, set it apart from other dive watches. It's also said that Aquastar circa 1960 introduced watches with rotatable chapter rings to mark elapsed time. Twin-crown dive watches with rotatable chapter rings were the rage in the 1960s.

The Chrononaut collection seeks to revive the design of twin-crown watches while using modern materials and manufacturing techniques. Even as we maintain the signature styling cues of Gruppo Gamma, watch aficionados would immediately recognize the subtle tribute we pay to the classic watches of times past.

The name 'Chrononaut' came about because the watch keeps track of two time zones. The rotatable chapter ring marks a second time zone and is useful for overseas travellers, workers collaborating with team members from other countries, as well as folks with loved ones residing in different time zones. With intensely bright luminescent markers the Chrononaut ensures readability at all times.

While smaller and slimmer than our other collections to date, the Chrononaut is no less a capable tool watch. Powering the timepiece is a Swiss automatic movement. The surgical grade stainless steel case with box-shaped sapphire crystal is engineered to a depth rating of 300 m/ 1000 ft. Two screw-down crowns - one for winding and timesetting, and the other to turn the
 ring - make this timepiece stand out from the rest.

316L stainless steel, brushed, water resistance 300m
Diameter 42mm, length 50mm lug-to-lug, height 12.5mm excluding 1.5mm crystal, lug width 22mm, weight 130g with strap
Box-shaped sapphire crystal with underside anti-reflective coating, stainless steel and sapphire exhibition caseback, twin screw lock crown

Swiss made STP1-11 by Swiss Technology Production SA, automatic bi-directional winding, 28800 bph, accuracy between -30 to +30 s/ day, power reserve 44 hrs, rotor signed and decorated with Côtes de Genève

Matte black dial, thick printed markers with Swiss SuperLumiNova®
Rotatable chapter ring, markers filled with Swiss Super-LumiNova®
Silver color hour and minute hands and red seconds hand, with Swiss SuperLumiNova®

Tropic rubber, black, length 125/75mm, width 22/20mm with buckle
Canvas strap, width 22/22mm with buckle

Screwdriver for strap changes, travel pouch