Hi everyone Some other valjoux column wheel chrono, 1967 britscar diving chrono ref 2003 with valjoux 72, it is a sister model of the jenny carribean, haste de luxe et ollech & wajs ref 2003 chronois which were the first diving chrono introduced with a screw down crown back in 1967 PC010878 1966 dreffa valjoux 92 aviation chronograph bought from my watchmaker PC010880 Best regards Georges