The Vintage Wrist Watch Company has dated this piece to the 1910s.
The watch has a Swiss hand-winding movement, identified as by Marvin, which is working nicely.
The watch measures 35mm diameter excluding the winding crown and the fixed wire lugs.
The case is silver and there are hallmarks inside the front cover for Arthur Rendall.
For this, a sponsor's mark was required. In this particular case, Arthur Rendell was an employee, and probably in charge, of the department that handled imported watches at a company called Pringles, the UK's largest wholesalers of jewellery, silverware, clocks and watches, so it was deemed relevant to use his initials.

The screw-on case back is hallmarked for London 1915 with a sponsor’s mark for George Stockwell. The case back is a well fitting period replacement of the correct age which suggests it was genuine work commissioned at the time, perhaps to replace a lost case back.

The case is in lovely condition. The front has a small central lens surrounded by enamel filled numerals. The button to open this front cover is between the bottom lugs.
The back of the watch has a screw-on case back which is engraved, ‘Maxn Dalison, Nov 1, 1916’.

The watch has a glass lens which is in lovely condition.
The dial is signed Harrods, the original retailer of the watch. There is an old patch of damage towards the edge of the dial, by number 5. Original hands.
The watch comes in a new presentation box.
I have included an old Harrods advert within the photos on this listing, (from watchcrunch.com), this advert is not included in the sale.
The Vintage Wrist Watch Company has dated this piece to the 1910s.
Specialists in antique and vintage wrist watches and pocket watches
You can view the stock and full dealer information on the The Vintage Wrist Watch Company Profile Page