ISA Swiss 9003/7301

Historical ISA analog-digital quartz world-time calibre with two independent analog hands synchronized to the digital time display. The official sheet describes 24 preprogrammed time zones, automatic analog hand adjustment to the selected zone, date, alarm, daylight-saving mode and an electroluminescent backlight. Attribution is to the historical ISA quartz range, not a claim of manufacture by the current ISA Timepieces Swiss SA mechanical-movement company.