Tudor Master Chronometer

Tudor Black Bay 58 GMT, 39mm stainless steel case with polished and satin finishes, black, domed, with gilt applied hour markers, 24-hour bidirectional rotatable bezel in stainless steel with black and burgundy anodised aluminium insert, Manufacture Calibre MT5450-U (COSC and METAS certified) self-winding mechanical movement with bidirectional rotor system integrated GMT function, rubber strap with Tudor “T-fit” clasp, domed sapphire crystal, waterproof to 200m (660 ft)

Smooth functioning when exposed to a magnetic field of 15,000 gauss and precision following exposure.