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 Chronometer Certificate Sternwarte Glashütte 6658-1
Details:Series Iron Annie JU52Movement ETA 2826-2, 25 jewels, Swiss made Big date, mechanic, self-winding Sapphire glass, glass exhibition backWhite dial with black digits / markers and silver colored Junkers apply Chronometer Certificate Sternwarte Glashütte - guarantees highest precision and accuracy of measurement even through extreme temperature variationsEngraved dial in "Corrugated Sheet" styleStainless steel case, satined Diameter: 40 mm, Height: 12 mm, weight: 120 g Water-resistant up to 5 atm