Breitling “Seacolt”

European Watch Clock and Jewellery Fair 1987 BF 307
A true professional diving watch from Breitling. The minute hand carries a capsule filled with the fluorescent gas tritium, providing nearly 100% better legibility at great depths than other systems. The watch’s unidirectional turning bezel also features a similar capsule, protected by a sapphire crystal. All-steel case water-resistant to 200 m (20 atm), with mineral crystal. The strap’s two steel pins (a Breitling patent) are designed to prevent the bracelet from being ripped off the wrist. (BREITLING “Seacolt”)