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.

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

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

Introducing The Naked Watchmaker X Frederique Constant Slimline Perpetual Calendar Manufacture - Revolution Watch

ANTIQUA - Vianney Halter

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

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

Up Close With The Vianney Halter Antiqua Perpetual Calendar

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

Vianney Halter specializes in retro-future watches

How Watchmaking Became Modern Art - The Hour Glass Official

AHCI - A visit to the man who changed my vision of watchmaking: Vianney Halter

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

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

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

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