File:Certina Argonaut Chronograph 8501 001.jpg

Summary

Description: Certina Argonaut Chronograph, reference 8501 001, a 38 x 42 mm manual-wind chronograph in an edged cushion steel case, shown straight-on: black "reverse panda" dial with three white tricompax sub-registers carrying red accents, and a black tachymeter scale. Source URL: http://www.vintagecertinas.ch/img/tabelle/argonautchrono3black.jpg Source publisher: VintageCERTINAs (specialist reference table: https://www.vintagecertinas.ch/en/certina-argonaut-chronograph/, row for reference 8501 001) Retrieved: 2026-08-24 License or editorial purpose: Editorial use for non-commercial identification of the watch on its own IMWDb catalog page, sourced from a specialist Certina reference archive; this is the same source that identifies both this reference and the related Certiday 5901 173 for their UFO (1970) appearances. Modifications: None. Delivered exactly as retrieved from the source URL (300x300 JPEG). This reference was produced only from about 1968 to 1972 and no larger authentic photograph of this exact reference and dial configuration could be located; the shorter dimension is below the normal 800 px minimum, retained under the rare/archival-material exception rather than upscaled. Related page: content/Certina_Argonaut_Chronograph_8501_001.wiki