See-through case back
Certina affords great views of this mechanical timepiece: the case back has a robust watch glass through which to admire the mechanism. The delicately constructed rotor that reliably ensures the provision of energy in all automatic watches is clearly displayed.
Powermatic 80 Movement
Power reserve is the time a fully wound mechanical watch runs until it stops - usually between 38 and 42 hours. The Powermatic 80 calibre makes a power reserve of up to 80 hours possible! So you can leave this watch for up to three days before having to set it anew - if you can do without it for that long...