As for the ZENO-WATCH Air Force collection, a clean, straightforward design was the main focus, regardless of current fads and fashions. This watch collection was also developed on the same core principles of supreme functionality, precision and user friendliness – These truly unusual watches from the Big Star collection are designed to be worn by strong men.

Just as André-Charles Eigeldinger did back in 1922 upon producing the first ZENO watches, ZENO watchmakers today continue the tradition of making mechanical timepieces with designs that stand the test of time – XXXL in size, design and character.

The GIANT CHRONOGRAPH comes in a massive 50mm case in stainless steel with easy-grip special crown, slightly domed hardened mineral glass and high contrast pilot-style dial. The watch houses a Valjoux 7750 mechanical self-winding movement.

Technical details

Hours, minutes, subsidiary seconds, day- and date indication,
Chronograph stop watch (h/m/s)

Diameter 50mm, thickness 17mm – Three-part stainless steel design (316L) with satin-finish to prevent reflections, screw down stainless steel back with crystal, big cylindrical push pieces (for totalizing time measurements) and easy-grip special crown with double O-ring gaskets – shock resistant, antimagnetic, water resistant to 5 ATM (tested for DIN 8308, DIN 8310, DIN 8309)

Valjoux 7750 mechanical self-winding movement with integral chronograph mechanism with actuating cam, slide lever control, day and date display with fast correction, Glucydur balance 28,800 vibrations per hour, Nivaflex mainspring, 25 jewels, 48 hour power reserve, Incabloc shockproof system, Etachron precise adjustment by means of an eccentric gear and index pointer, ball-bearing rotor with heavy metal rim (147 separate components)

Hardened mineral glass (slightly domed) – Sapphire crystal optional

High contrast pilot-style dial with printed minute circle, luminous Superluminova numerals and skeleton-type hands

Extra strong padded calfskin leather strap with safety rivets, with large stainless steel buckle (other straps and deployant clasp optional)

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