Modified calibre 13 ¼''' BE-53AE automatic chronometer
Hours, minutes, seconds, date and chronograph
43mm hardened stainless case with Bremont Trip-Tick construction and sapphire crystal
Bremont ALT1-P2 Pilot Blue
The 2017 ALT1-P has new dials and hands housed in a new case design, which remains 43mm in dimension. As with most core range pieces the ALT1-P has a stainless steel case made to an exceptional hardness of 2000 Vickers which is seven times that of an average stainless steel watch case.The convex sapphire crystal is equally as hard and has nine layers of anti-reflective coating applied to both sides of the glass for increased legibility.