Particularity: last mechanical family of JH; here from Junghans parent company Diehl
Beats per hour: 21.600 A/h
Dimensions of movement: 11,5´´´
Time of production: 1974 – 1976; here: D75 (April 1975)
Functions: Hand winding
Display: hour, minute, sweep second
Dial: silvery, light longitudinal strip cut; Indices: applied chrome bars with light dots outside and black line inside; black minute-lines outside; in the glass adjoining bezel ring
Hands: black bars with lume; white strips
Second hand: black thread
Case: cushion
Case diameter (mm): 36
Case material: gold plated brass
Back: Steel, snap on
Band: none
Remark
The shown version of the Junghans 623 has no beveled side faces of the maine plate (for comparing: Junghans 623.20).
This version was produced with just 15 stones and a simple Ruby-Neutro-Shock protection of the balance.