This antique Swiss made 15 jewel mechanical Digital Read Jump Hour wristwatch dates to the Art Deco period circa 1925 – 1935. Watch has been freshly serviced and is is excellent working condition. The three apertures on the top of case show digital hours and minutes and analog seconds. When the hour changes the number displayed jumps forward to the next hour, the minute disk constantly moves forward and the seconds are only visible for 1/2 of each minute. The second hand is a replacement, the original was lost. These art deco jump hour watches are hard to find in good working condition and likely will continue to increase in value. Photos are not actual size of watch, the case measures 25 mm across (not including crown) x 39 mm lug to lug and is fit with a new leather bracelet.