All Junkers watches are handmade [made in germany] and provided with an unequivocal serial number which is engraved together with the model number and the Junkers applique at the case back.
Junkers Automatic Corrugated Sheet 6256-5
details:series Corrugated Sheet JU52movement ETA 2824-2, 25 jewels, Swiss made mechanic, self-winding glass exhibition backwhite dial with black digits / markers and gold colored Junkers apply engraved dial in "Corrugated Sheet" stylestainless steel case, satined diameter: 40 mm, Height: 11 mm, weight: 61 g water-resistant up to 5 atm