Measuring 36.5mm and 12.75mm thick, this hefty vintage 1950s Helbros chronograph with the fine manual winding Landern 148 movement has just been meticulously dismantled and serviced. Timekeeping and chronograph functions are all operating perfectly. Look at the amazingly preserved black dial with original lume and matching original hands! This stainless steel back case with chrome-plated bezel and lugs is pristine. We are just not going to find these black dial chronos in the future, as they will all be snatched up. This is a spectacular example.