1998: Vianney Halter Antiqua, the perpetual calendar that inspired a generation of independent watchmakers - Revolution Watch

With its steampunk style that was ahead of its time, the Vianney Halter Antiqua was one of the most important perpetual calendars of its time.

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Antiqua, A platinum perpetual calendar wristwatch with leap year indication, Circa 1999, Vianney Halter, ANTIQUA, 鉑金萬年曆腕錶，備閏年顯示，約1999年製, Important Watches I, 2023

Up Close With The Vianney Halter Antiqua Perpetual Calendar

10 Watches That Changed What's on Your Wrist - The New York Times

Why I Bought It: Vianney Halter Antiqua - Quill & Pad

Armin Strom Introduces the Gravity Equal Force P.03 for Collective - Revolution Watch

1998: Vianney Halter Antiqua, the perpetual calendar that inspired a generation of independent watchmakers - Revolution Watch

The 30 Best White Gold Watches at European Watch Company - THE COLLECTIVE

A Short History Of Vianney Halter And His Watches: A Wild Ride That's Not Over Yet - Quill & Pad

Revolution Magazine

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Buy Vianney Halter Antiqua Perpetual Calendar rose gold watch – A COLLECTED MAN