this is a vacheron constantin overseas in steel in an early execution from the late 1990s, reference 42040. the 37 mm automatic chronometer comes with an overall unpolished case with some signs of wearing (like two little scratches on the glas). all parts about it are the original ones. it´s beautiful dial with guilloché pattern is 100% flawless with a stunning tritium patina. The Vacheron Constantin currently fits wrists up to a circumference of 17,5 cm. It´s chronometer caliber  1310 with 21c gold rotor is running strong and exact not being in the need for a service currently.