The Vintage Wrist Watch Company has dated this piece to the 1950s.
The watch has a 17-jewel automatic movement, calibre 28.5R-21, which is working nicely. This calibre of movement was in production from 1952 until 1962. The serial number of this particular movement, 4,472,618, dates it back to 1959. The movement is also signed Chs Tissot & Fils.

The watch measures 35mm wide excluding the winding crown and 35mm high excluding the lugs. The case is stainless steel and it has the Seastar sailing ship logo to the screw-on case back. The inside of the case back is signed with the Tissot name and logo. The case has general light surface marks, nothing too detrimental at all. Plain winding crown.

The lens looks good to the naked eye, light scratches if viewed through a jeweller’s loupe.
The signed dial has its original hands, seconds sweep and outer minute markers. There is a little age related marking and darkening to the dial.
A new leather strap has been fitted.
The watch comes in a new presentation box.
The Vintage Wrist Watch Company has dated this piece to the 1950s.
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