Marine clock citizen japan vintage

Superb marine clock of the brand citizen which was mounted in a freighter. Entirely in metal including the bottom which is aluminum. Glass into glass. This model was mounted in the boats of the japanese merchant navy from the 60s to the 90s. Superb condition for its age. Battery operated. Slightly curved glass which gives it an even more vintage look. Front: 17 cm. Back side: 22 cm. Height: 7.5 cm.