Watch Yema Flygraf Navigator Auto Blue Dial Bracelet Rubber 40MM
EMBLEMATIC AVIATION TRICOMPAX CHRONOGRAPH
The Flygraf made its debut in 1970 as a professional aviation chronograph, at a time when on-board instruments were nowhere near as sophisticated as they are today. Thanks to its complex functionality, it played an important role in the French aviation industry, enabling complex calculations to be carried out rapidly in flight.
CURVED, BEVELED SAPPHIRE CRYSTAL
The Flygraf Navigator features a high-quality, bevelled sapphire crystal 1.80 mm thick, offering improved legibility, enhanced resistance and a resolutely vintage look.
MOVEMENT ETA VALJOUX 7750
This Swiss chronograph movement, renowned for its precision and reliability, features central hours, minutes, seconds and an automatic ball-bearing winder. Featuring 25 jewels, it beats at 28,800 vph with a 48-hour power reserve.
A TRUE AERONAUTICAL INSTRUMENT
With a large 40 mm diameter by the standards of the time, a classic chronograph function, a day/date window, and a tachymeter bezel with slide rule coupled to a flange with logarithmic scales, pilots could use the Flygraf to perform vital calculations during flight, such as average speed, average kerosene consumption of an aircraft, converting nautical miles into miles, miles into kilometers, and so on.
MULTI-LANGUAGE DAY INDICATOR
The Flygraf Navigator is equipped with the ETA Valjoux 7750 mechanism, with weekday indication in French/English (other languages available on request) and date at 3 o'clock on the dial.
TIN BOTTOM
The 316 L steel caseback is engraved with the historic YEMA coat of arms at the hydraulic press and is 10 BAR waterproof.
SUPER-LUMINOVA GRADE A
The slightly oversized hands and hour-markers are coated with Super-LumiNova® Grade A, for perfect legibility in the dark.
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DIAMETER I THICKNESS I HORNS
40 mm | 13.9 mm | 20 mm
BOX
316L stainless steel with polished effect and polished bevel
LUNETTE
Bi-directional bezel in two-tone aluminum
CURNOW
ETA Valjoux 7750
Daily drift of -5 / +10 seconds per day
28,800 A/h
Hours, minutes, seconds, day and date
Chronograph, triple counters for seconds, minutes and hours
Day and Date at 3 o'clock
POWER RESERVE
48 hours
DIAL & HANDS
Dark blue matt
Polished "Baton" indexes
Super-LumiNova Grade A
GLASS
1.80 mm thick sapphire crystal
WATERPROOFING
10 BAR / 330 feet / 100 m
BRACELET
Bracelet steel or leather or rubber according to your choice