The Vintage Wrist Watch Company has dated this piece to the 1910s.
Tacy was a combination of the names Tavannes and Cyma.
The watch has a stem-winding movement which is working nicely. The movement is protected by an inner hinged cover (there are some scratches to this inner cover).
The watch itself measures 50mm diameter excluding the winding stem and the loop. The case is gold plated and was made in England by the Dennison Watch Case Company.
The case is in good condition with just light surface marks.

The acrylic lens is in good condition.
The white enamel dial is in good condition and has blued steel hands, a subsidiary seconds dial and an outer minute track.
The watch will be sent in a new presentation box.
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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