Retrone Platinum
Retrone – a watch whose name is inspired both by the retrospective style of regulator-type watches and by the retrograde mechanism of its minute hand. The toroidal case, its lugs, the caseback, the crown and the cover of the butterfly clasp mechanism of this bespoke one-off piece were made of platinum. It is thus the first Prokop & Brož watch in history made of this exclusive material. The movement of this watch – caliber PB 23 HS – features skeletonized bridges, a balance with screws around its rim and swan-neck fine regulation. This is the highest available specification of this caliber.