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 Fliegeruhr 6248-1 Corrugated Sheet JU52

Details:
Series Corrugated Sheet JU52
Movement Ronda 6203.B, Swiss technology
Big date, dual time - freely adjustable second time, quartz-controlled
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: 12 mm, weight: 100 g
Water-resistant up to 5 atm