Hand-winding Calibre J325

Type: form movement
Frequency: 4 Hz (28,800 vibrations per hour)
Dimensions: 28.4 mm x 25.6 mm
Height: 4 mm
Adjustment: Erhard Junghans precision adjustment
Winding: hand-winding
Power reserve: > 48 hours
Display: hours, minutes
Finishing: hand-engraved balance bridge, stripe finish on wheel bridge and calibre bridge, sunray-brushed crown wheel and ratched wheel, angled edges, screwed gold chatons, blued screws, base plate with perlage
Jewels: 18