Famous Graham Chronofighter Vintage GMT

Graham Chronofighter Vintage GMT comes in a much more wearable (for most people) 44mm-wide case. The Chronofighter Vintage GMT also has a retail price of several thousand dollars less than the Chronofighter GMT. The 24 hour indicator bezel now rotates (the previous versions didn't) and the bezel insert is black ceramic. Easily the most interesting part of the case is the chronograph pusher mechanism which is built mixed in with the crown https://www.captainthewatch.is.

Inspired by historic triggers of various types, what you have is a unique system which builds on the base Swiss ETA Valjoux 7750 automatic chronograph movement architecture. The trigger is used to start and stop the chronograph via a button that is actually in the crown (similar to many monopusher chronographs), and a separate pusher above it is used to reset the mechanism.

Graham caliber G1733 (as they call their version of the modified movement) is an automatic operating at 4Hz with 48 hours of power reserve. Complications include the time, big date indicator, GMT hand, and 30-minute chronograph.