Moritz Grossmann MG-002570 Backpage Transparent White Gold Openworked LIMITED

This Moritz Grossmann MG-002570, one of just eight examples in white gold, turns the watchmaker's craft inside out: where the finest finishing traditionally hides behind the caseback, the Backpage Transparent flips it to the dial side, so the Grossmann balance, hand-engraved balance cock and decorated going train become the very face of the watch — a piece for the collector who reads a movement the way others read a dial. It is driven by the hand-wound calibre 107.0, a mirrored construction in which an added wheel reverses the drive train so that the movement's celebrated "back page" faces the wearer, its untreated German-silver frame, raised gold chatons and Grossmann winder with stop-seconds laid open beneath a transparent sapphire dial. The 18K white gold case measures 41mm across with a thickness of 11.5mm, sapphire before and behind, worn with the quiet confidence of true rarity. In place of a conventional dial, a semicircular hour arc and outer minute track frame the mechanism, the brown-violet annealed hands sweeping across the exposed calibre. Few watches make the movement itself the entire reason for being; this is one of them.