A truly special vintage 38mm CROTON (NIVADA Grenchen) Chronomaster Aviator Sea Diver, Ref. 9839, powered by manual winding Valjoux 92 calibre. It features a gorgeous “panda” dial with striking black subdials, red accents and a warm off-white interior, original broad arrow hands with tritium pumpkin patina lume. Comes on original NOS Tropic rubber strap with steel buckle. Comes with its original Croton box and warranty booklet (empty). This is a rare opportunity to pick up a world class example of a watch that is extremely desirable and coveted.
C. Three body, polished and brushed, lapidated lugs, bi-directional revolving graduated black bezel for the decompression times, screwed-down case back. D. White and black “Panda” with applied luminous baton indexes, outer 1/5th seconds divisions and outermost white tachometer scale, subsidiary dials for the seconds, 30 minutes register with yachting timer indicated in red. Luminous broad-arrow hands. M. Cal. Valjoux 92 (V 35/B 4789), rhodium plated, 17 jewels, straight line lever escapement, monometallic balance, shock absorber, self-compensating blued steel Breguet balance spring. S: Original Tropic Sport rubber strap. Dial signed, case numbered, movement signed Croton. Diam. 38 mm. Thickness 12.5 mm.
In the early 1960s, only one chronograph managed to combine nine functions into a single watch: the Nivada Grenchen Chronomaster Aviator Sea Diver. The Chronomaster, with its 100-meter water resistance (328 ft, 10 bar), was the first timepiece to combine a stopwatch with a tachymeter scale, diving watch, pilot’s watch, timer, yacht timer, and GMT display; not to mention, of course telling the current time. In print ads, Nivada promoted the Chronomaster with slogans such as “Super-Chronograph” and “The world’s busiest watch – has more uses than ever counted.”
Watch is in overall good condition 8/10, running and ready to wear or gift!