Ruhla Space Control 4640M1 Men's Watch • German Watchmaking Tradition • Solar Powered

The Ruhla Space Control 4640M1 is an elegant men's watch that combines German watchmaking tradition with modern solar technology. As a tribute to the first German in space, Sigmund Jähn, this model captivates with its timeless design and first-class craftsmanship from Ruhla, Thuringia.

Equipped with a robust stainless steel case, scratch-resistant sapphire crystal, and a precise Japanese solar movement, this watch offers not only the highest reliability but also sustainable energy efficiency without battery changes.

Special Features of the Ruhla 4640M1 Watch

• German watchmaking tradition from Thuringia (Made in Germany) for the highest quality standards.
• Legendary Space Control design as a stylish tribute to historical space exploration.
• Sustainable and precise solar drive combined with scratch-resistant sapphire crystal and 10 bar water resistance.

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 the crown down tightly beforehand!!!
• Not waterproof: Only clean dry or slightly damp, do not use water or cleaning agents.
• Avoid: Abrasive agents, perfume, cosmetics, and heat.
• Leather straps: Do not soak, only clean slightly damp, and let dry away from heat.
• Water resistance: Do not wear when showering or bathing, have it checked annually.
• Battery (Quartz): Have an empty 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 scratches).
• 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 like chlorine, salt water, or disinfectants.
• Apply cosmetics and perfume first, then put on jewelry.