We would like to acknowledge an unbranded Swiss made pocket watch.

This is an unbranded clock from an unknown maker, thought to be from around 1900.
This is a very rare pocket watch with a dial on both sides, one side being a regular clock and the other side being a stopwatch (chronograph).
The case is made of 800 silver, is quite thick and has a heavy feel.
It is unknown whether it has been overhauled, but the balance wheel is in good condition and ticks along smoothly.

We hope this once-in-a-lifetime encounter will be a special one for you!

(Explanatory video)
https://youtu.be/CG-3PvPWmk4?si=yLE8mFtiWTC7Qw7e

【condition】
Appearance: ★★★☆☆ Slightly damaged and dirty

Function: ★★★★☆ Maintenance history unknown but in good working condition (daily accuracy within 5 minutes)

- Case: Has signs of wear and tear, small scratches and dents, but is well maintained
-Case engraving: Swiss 800 silver engraved on the bezel on the chronograph side
-Dial: There are cracks and chips on both sides, but they do not affect visibility.
Other: The crown is quite stiff when winding the mainspring.
Accuracy: Approximately 4 minutes per day when measured with a flat timegrapher
Power reserve: up to 29 hours from full spring

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

【detail】
・Brand: Unknown
- Year of manufacture: Around 1900
Movement: Mechanical
・Mainspring: Manual winding
・Time setting, dowel pressing (nail set)
・Serial No. 74428 (case)
・Case material: Continental silver (800/1000)
・Case diameter 50mm (excluding crown)
・Case thickness 21mm (including windshield)
Weight: 100g

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