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

This is a rare type of pocket watch with jumping hours and retrograde movement.
When the time changes with Jumping Hour, the numbers in the small window at the top click and change.
A retrograde minute hand moves half a revolution from 0 to 60 and then suddenly returns to 0 again.
There was a problem with the watch stopping when changing the time, but we repaired it and overhauled it in June 2025.

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

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

- Case: There is some wear over time, but no noticeable scratches or dents.
- Case engraving: The back cover and inner cover are also engraved with the manufacturer's mark.
・Dial: In very good condition with no stains or missing letters.
Other: Overhauled in the US in June 2025
Accuracy: Approx. 1 minute per day when measured with a flat timegrapher
Power reserve: from full spring to 38 hours

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

【detail】
・Brand: Modernista
- Year of manufacture: 1920
Movement: Mechanical
・Mainspring: Manual winding
・Time adjustment: Pull the crown (pendant set)
・Serial No. 19507 (case)
・Case material: Gold plate
・Case diameter 50mm (excluding crown)
・Case thickness 15mm (including windshield)
・Weight 89g

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