Junkers JUMO 9.21.01.01.M Men's Watch • Made in Germany • Corrugated Sheet Look

The Junkers JUMO 9.21.01.01.M is an impressive homage to Hugo Junkers' engineering prowess, blending aviation tradition with modern watchmaking technology. This automatic chronograph captivates with its distinctive blue dial featuring a corrugated sheet metal look, unmistakably inspired by the design of the legendary JU52.

Crafted in Germany, this timepiece offers the highest precision and durability. With a robust 42 mm stainless steel case, a functional tachymeter bezel, and a high-quality Milanese band, the watch is the ideal companion for men who value technical heritage and excellent craftsmanship.

Special Features of the Junkers 9.21.01.01.M Watch

• Iconic dial in the corrugated sheet metal design of the JU52.
• High-quality automatic chronograph movement Made in Germany.
• Functional tachymeter bezel and Milanese stainless steel bracelet.

Care Instructions for Wristwatches

Care & Cleaning

• Daily: Wipe the case and strap with a soft, dry cloth to remove dirt and sweat.
• Water-resistant watches: Clean with mild soapy water and a soft brush, rinse, and dry thoroughly.
  Important: Screw down the crown firmly beforehand!!!
• Not water-resistant: Clean only dry or slightly damp, do not use water or cleaning agents.
• Avoid: Aggressive agents, perfume, cosmetics, and heat.
• Leather straps: Do not soak, clean only slightly damp, and let dry away from heat.
• Water resistance: Do not wear while showering or bathing, have it checked annually.
• Battery (Quartz): Have a dead battery replaced immediately.
• Mechanical watches: Service by a master watchmaker every 5 years.

Storage & Handling

• Store the watch separately, not directly with other jewelry (risk of scratching).
• Remove mechanical watches when winding, do not leave the crown pulled out.

Jewelry Care – How to Keep Your Jewelry Beautiful:

• Remove jewelry before showering, bathing, and sports.
• Avoid direct sunlight – wood, leather & co. can fade.
• Hands off – constant touching leaves grease and dirt.
• No aggressive cleaning agents such as chlorine, saltwater, or disinfectants.
• Apply cosmetics and perfume first, then put on jewelry.