Perpetual Calendar Retrograde Date, 270th Anniversary 'Openface', Platinum Kind of Blue It is a time machine

It is a time machine which aspires to transport the wearers mind elsewhere

here with a blue grand feu enamel dial

here paired with Lange’s proprietary Honeygold case material that is reserved for the most exclusive offerings

Laurent Ferrier’s classical three-hand model with their most technical escapement

Reviving a dial design initially intended for the final run of the 1963 'First'

Perpetual Calendar Retrograde Date, 270th Anniversary 'Openface', Platinum Kind of Blue It is a time machineA Perpetual Calendar Retrograde Date, made for Vacheron Constantin's 270th Anniversary in 370 examples. The models made for this anniversary introduced an 'Openface' concept, with partially opened dial apertures allowing mechanics to be observed in small sections. The dial is comprised of 18k gold featuring a hand guilloch Maltese cross motif, mixed with opened sapphire discs. This perpetual calendar blends Vacheron Constantin's storied history of