GIRARD-PERREGAUX have revealed the mechanical heart of their classic watch under a new transparent sapphire dial.

The Girard-Perregaux ‘Vintage 1945 Large Date, Moon-Phases watch’, to give it its full title, shows off its gears, display disks, screws, levers and wheels for the first time. Available in a choice of stainless steel or pink gold versions (both with alligator straps), the watch features a smoked glass effect on the sapphire dial obtained by surface metallization.

The watch also includes a jumping date change and moon phase function (located at 6 o’clock and operating on the same axis as the small seconds hand), along with hour, minute and small second indications.

There’s a 46-hour power reserve, and it’s all packed into the rectangular 1945 (the original was designed that year) Art Deco-style case.

The watches are priced at 33,500 CHF (approx $35,000) for the gold version, and 15,900 CHF (approx $16,500) for the steel.