Certina Watch DS-1 Automatic Day Date. An exceptional performance and price ratio has always been a Certina hallmark. This is particularly evident in the Automatic collection. These outstanding sport classic timepieces feature excellent design, sometimes with a fashionable, distinctly retro flavour and their proven ETA automatic movement ensures impressive accuracy and reliability. High quality timepieces fit for sport, business or leisure. Supplier Model Number C006.430.16.031.00