Technical watches (1675-1825) Technical watches (1675-1825)			The Mixed Numerals Watch with equation of time, centre-seconds and early lever escapement... Full printable version
The Expanding Minute Hand The "Onion" "He Has Chosen the Most Beautiful" The Egg The Coach Watch BERTHOUD's Equation of Time BERTHOUD's Double-Balance RANSONET's Musical Watch The Mixed Numerals The Manual Perpetual Calendar The Benjamin FRANKLIN Dial The Chronograph