1920s Antique Swiss Election Jumping Hour Pocket Watch, Silver Case, Working Condition

We present to you a Swiss Election pocket watch from the early 20th century.

This watch features an original "half-digital" dial called a jumping hour, which has no hour hand and shows the time only with the numbers in the small window at the top and the minute hand.
The case is made of 900 silver and the overall design is in the "Art Deco" style that was popular at the time.
This is a rare archive piece that is a must-have for anyone who loves the deep history of antique watches and cutting-edge modern designs.
It is unknown if it has been overhauled, but the balance wheel is in good condition and ticks along smoothly.

(Explanatory video)
I will add it later

【condition】
Appearance: ★★★★☆ Excellent condition with no noticeable scratches or stains

Function: ★★★★★ Recently serviced and in good working condition

-Case: There is some wear due to age, but no noticeable scratches or dents.
-Case engraving: The inside of the case back is engraved with the manufacturer and Swiss 900 silver.
・Dial: There are some stains and scratches due to age, but it is in beautiful condition with no rust.
Other: The windshield is made of mineral glass and is free of scratches.
Accuracy: Approximately 1 minute per day when measured with a flat timegrapher
Power reserve: 31 hours from full spring

*The daily difference may vary depending on your posture, so please use this as a reference only.
*It is very old, so I don't know the history of parts replacement or repairs.

【detail】
・Brand: Election
・Year of manufacture: 1920s
Movement: Mechanical
・Mainspring: Manual winding
・Time setting: Pull out the crown (pendant set)
・Serial No. 180068 (case)
Case material: Coin silver (900/1000)
・Case diameter 45mm (excluding crown)
・Case thickness 11mm (including crystal)
・Weight 55g

*This is an antique item and there is no other item that is exactly the same.
※If you have any questions, please feel free to ask.