The Comparative hour/divide watch
The "Comparative hour/divide" watch is the first decimal division watch of the measurement of time with a comparative and concurrent display on the same dial with two scales of the two types of measuring time.
Montres Chanson David - Chemin des Pignets 8 - CH-1028 Préverenges -
Tél. +41 21 801 91 86 - Fax +41 21 801 21 65 - info@chansondavid.com
Chanson David Watches - Pignets 8 - CH-1028 Préverenges -
Tel. +41 21 801 91 86 - Fax +41 21 801 21 65 - info@chansondavid.com