Patek ref 3418 (Convertible) DA26 indeed Smiths were the only

indeed Smiths were the only English watchmaker to ever produce an automatic movement

anti-magnetic wrist watch to be supplied to navigators and pilots

very precise adjustment of the time keeping

worn condition - it has marks of use

Patek ref 3418 (Convertible) DA26 indeed Smiths were the onlySometimes, the rarest watches arent the flashiest ones the ones that whisper, rather than shout. This is not your usual Patek, the ref. 3418 was an understated experiment: a steel, convertible watch built for engineers and scientists and released in 1958. While the rest of the world was making ever flashier gold dress watches, Patek quietly released this clever piece with a convertible case that could switch between a strap and a bracelet. This watch