Jean-Louis Jeanmaire - A. Webster & Co. London

A collection of 4 large calendar watches An impressive and heavy lever chronometer with digital date and weekday display according to the Swiss patent 5139 Case No. 109398, Dimensions 68 mm, circa 1892, Weight 271 g, Origin Schweiz Case: Nickel. Dial: Enamel. Movm.: 4/5 plate movement, club-tooth lever escapement, large screw compensation balance. Jean-Louis Jeanmaire was granted a patent in 1892 for the invention of displaying the date using date discs in a window. He is considered the inventor of the oversize date. Case: very good, slightly worn. Dial: very good. Movm.: very good, capable of running, cleaning recommended.