Oris Chronoris Grand Prix '70 Limited Edition

The Oris Chronoris Grand Prix '70 Limited Edition, reference 01 677 7619 4154-Set, is a chronograph with a 42.5 mm steel case, a see-through case back and a leather strap at 21 mm lugs, rated to 50 metres. Beneath a domed sapphire crystal, the black dial brings together small seconds, a date window and a second time zone. A red rotor winds calibre 677 automatically, with a 48-hour power reserve in this limited edition of 1970 pieces.