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Face of a Breguet Perpetuel Repeater

Tourbillon Patent

[breguet] One of the illustrated pages from the Patent for the Tourbillon, issued to A. L. Breguet on the 7th of Messidor, year IX(June 26, 1801 in the real calendar)
aperture=f/2.8 focal=7.4mm (35mm equivalent: 35mm) exposure=0.040 s (1/25)

Face of a Breguet Perpetuel Repeater

Tourbillon Patent
Photo album generated by album from David Ljung's Marginal Hacks Wed Sep 15 17:11:43 2010