The ALT1-ZT/51 maintains the clean legible dial with its new applied and bespoke coloured Super-LumiNova index markers, and with the 24hr function having been moved to the bezel for improved clarity. Greater detailing around the stepped sub dials with micro lines on the ZT models has been made to give the dial more depth. Functionally the ALT1-ZT/51 has the same features as the ALT1-ZT/BK with the integration of the Roto-Click bi-directional inner rotating bezel. The GMT hand combined with chronograph functionality measuring seconds, minutes and hours make this model ideal for travel. For additional clarity Bremont deploys the same hand design as the MB series, including the second time zone marker, which has been so effective on the MBIII. The ALT1-ZT/BK hands are used again but this time with several layers of bespoke coloured Super-LumiNova.