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 6256-1

details:
series Corrugated Sheet JU52
movement ETA 2824-2, 25 jewels, Swiss made
mechanic, self-winding
sapphire glass, glass exhibition back
white dial with black digits / markers and silver colored Junkers apply
engraved dial in "Corrugated Sheet" style
stainless steel case, satined
diameter: 40 mm, Height: 11 mm, weight: 61 g
water-resistant up to 5 atm