Timepiece with a calendar display
Timepiece with a calendar mechanism
Timepiece with a date mechanism comprising two superposed...
Timepiece with a date mechanism comprising two superposed...
Timepiece with a perpetual calendar mechanism
Timepiece with calendar
Timepiece with calendar
Timepiece with calendar
Timepiece with calendar mechanism containing 2 date indicators
Timepiece with date display including a running equation of...
Timepiece with date mechanism
Timer programming apparatus
Train of clockwork with perpetual Julian date