The alt1 zt51 adds a new dimension to the range whilst integrating a very important design cue from bremonts past the limited edition p51 it 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 zt51 has the same fe