Great dark grey dial and black outer ring.
Caliber 1543 K is a quick date setting by turning the crown,
not like the earlier seven days by push and pull the crown.
Day setting is the same by turning the hours to the correct day.
Later with a full ETA caliber day and date were set by turning the crown.
Caliber 1543K is based at Eta caliber 2730 with a BpH of 21.600 and start of production 1970
Case ref: 147 T and the case number is 5608885
Signed crown and buckle and completely serviced.
Size 38,5 mm. x 36 mm. ex-crown.