Certina (Kurth Frères SA) is a underestimated brand that made great quality in-house movements right up to the quartz crisis of the 1970’s. A cool thing about Certina is that you can date your watch by looking up the serial number.

Pre Turtle back (58-60) Certina DS. In-house caliber 25-36. Very good condition. Serviced by me in Febuary 2018. Case size 36mm w/o crown. Asking Price £ 580 

1963 Certina. Case ref: 5101. Nice condition. Unusual black textured guilt dial. In-house calibre 25-36. Serviced by me September 2020. Case size 34mm w/o crown. Asking price £ 380. Click on image for more photos.