BREITLING Old Navitimer Cosmonaute Chronograph... Lot 23

BREITLING Old Navitimer Cosmonaute Chronograph / Gold Steel - Ref. 81600F/B12019 Circa 1991 Rare condition for this double numbered chronograph from the Navitimer Cosmonaute series with a 24 hour dial. Steel case with screwed back (signed and numbered, graduated scale). Multifunction notched bezel in 18K yellow gold (750 thousandths) serving as a ruler for calculations: climb time, fuel consumption rate and conversion of miles to nautical miles or kilometers). Functions: the hour hand covers 24 hours in a single turn of the dial. Silvered dial with three gold-colored counters, gold-painted Arabic numerals and hour markers and luminescent skeleton hands. Hour totalizer at 6 o'clock, small seconds at 9 o'clock, minutes at 3 o'clock. Breitling pilot strap in havana leather with original pin buckle. Movement: Hand-wound mechanical caliber signed Breitling / Lemania 1873 Swiss. Diameter: 41 mm. Condition: Very good condition - old stock item. (Carrying case reported).