While only 3.95mm thick, the svelte 38-jewel 2120/2800 would usher in an
link era of rapid expansion and production for the historically small firm. One more thing
link – the original 2120/2800 shared an odd connection to the brand's earliest perpetual calendars: the absence of a leap-year display.
link It is here that we find our true scope, the birth and early years of the Audemars Piguet Royal Oak Perpetual Calendar and, more specifically, those most seminal references that lacked a leap-year indication.
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