Certina DS Automatic

What I know is wrong with it

Needs a service. The oils appear to have hardened: the rate improved after running for a while, from +64 s/d to +14 s/d with 230° amplitude and 2.4 ms beat error. Case in used condition with no deep scratches or marks. Gold-coloured dial in fine condition with a little dirt. Scratched plexi crystal that will probably need replacing. Original crown. The caseback is stuck and has not been opened, so the calibre is not confirmed (probably Certina 25-651). Supplied without strap.

No watch here has been pressure-tested. A period WATERPROOF or WATER RESISTANT stamp says nothing about the seals today, so treat every watch on this site as not water resistant.