Quartz Base Movement
AssemblyThe timekeeping core: a 32,768 Hz crystal and divider IC pulse a Lavet stepper whose gear train drives the local-time hands and the world-time take-off. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Quartz Base Movement
6 top-level lines as of r191638| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Quartz Crystal | world-time-clock-quartz-crystal | 1× | 1 | · | part |
| 2 | Driver IC | world-time-clock-driver-ic | 1× | 1 | · | part |
| 3 | Stepper Rotor | world-time-clock-stepper-rotor | 1× | 1 | · | part |
| 4 | Copper Winding | copper-winding | 1× | 1 | · | part |
| 5 | Gear Train | world-time-clock-gear-train | 1× | 1 | · | part |
| 6 | Movement Frame | world-time-clock-movement-frame | 1× | 1 | · | part |