The very well maintained white dial is free of patina and has fine scratches at 4 o'clock, which can't be seen with the naked eye (can be barely made out on the photos). The logo "Certina" is original and printed. The hands/indices have no/barely any patina. The watch works reliably, flawlessly and accurately. The amplitude is optimal at 300. The watch is ready to be worn! I made timing measurements in 6 positions. The results are within the chronometer norm (rare, see the size photos of the timing machine). The casing is in excellent condition. No/minimal signs of use can be seen. The gold coating is intact. The mark "Plaque G 20" is clearly visible between the two lugs. All parts of the watch (except the strap) are original Certina. The original crown is mint condition. Calibre: Certina 25-66 Casing number: 6822744 (from 1967) Watch glass: plastic glass, minimal magnifying glass flaw Back: steel, original Certina, almost perfect Diameter (without crown): 34 mm Height (with crystal): 8.5 mm The brown vintage leather strap is 20 - 30 years old (with signs of storage, freshly lubricated), genuine leather, overall length: 18.5 cm A very beautiful model with precision values within the chronometer standard. A unique opportunity. Insured shipping without box.