1905 British antique JW Benson Ludgate pocket watch, sterling silver open face, in good working order.

I would like to introduce a pocket watch from JW Benson, a watchmaker that holds a Royal Warrant from the British Royal Family.
Benson is a watch manufacturer founded in England in 1840, and is a very popular brand in Japan, known for being favored by people like Jiro Shirasu.
[Brand Introduction] JW Benson

This is an open-face pocket watch with a sterling silver case, and the case is stamped with the year 1905.
The movement is a British-made key-winding "LUDGATE" movement.
Benson watches with their cursive logo are very popular, and they are simple yet substantial timepieces that embody the essence of British watchmaking.
It is securely housed in what appears to be its original case.
The watch's overhaul history is unknown, but the balance wheel swings smoothly and it ticks away vigorously.

I hope this "once-in-a-lifetime encounter" will become a special one for you!

(Explanation video)
https://youtu.be/XBNID0RTsWg?si=EU2Wyl7ZhRP6ruxP

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

Functionality: ★★★★☆ Maintenance history is unknown, but it works well.

Case: There is some wear due to age, but there are no noticeable scratches or dents, and it is in beautiful condition.
• Case markings: The case back and other parts bear the hallmark of a British financier.
- Dial: There is a small hairline crack near the 5 o'clock position, but it is hardly noticeable. - Other: The crystal is made of mineral glass and has no scratches or chips.
• Accuracy: Approximately 1 minute per day as measured on a flat-position timegrapher.
• Power reserve: Checkable up to 45 hours from full winding.

*Please note that the actual time difference may vary depending on your posture and other factors, so consider this as a rough estimate only.
*Since it is very old, the history of parts replacement and repairs is unknown.

【detail】
• Brand: Benson (JWbenson)
• Year of manufacture: 1905 (London K)
Movement: Mechanical
- Spring-wound key (2 holes)
• Time setting: Key winding (2 holes)
Serial No. 18881
Case material: Sterling silver (925/1000)
Case diameter: 51mm (excluding crown)
Case thickness: 18.5mm (including crystal)
・Weight 125g

*As this is an antique item, there are no other items that are exactly the same.
Please feel free to ask any questions you may have.