For designer Max Bill, visual sustainability was of paramount importance. This is a claim that the max bill MEGA Solar combines with energy sustainability: the highly efficient app-connected radio movement is powered by the sun.

Caliber: J101.85

Technology: Connected radio-controlled solar movement 

Case Material: Stainless Steel

Case Size: 38.0 mm

Case Height: 9.0 mm

Case Back: Glass case back with "sun" image printed on the inside

Glass: Anti-reflective sapphire crystal

Dial: White, luminous dots with environmentally-friendly luminous substance, hands with environmentally-friendly luminous substance

Water Resistance: Up to 5 bar

Strap: Vegan apple-fibre strap with microfibre lining, stainless steel buckle, quick release feature for quick and easy strap replacement

Functions:

• Date, connected to the Junghans app, adjustment of all current time zones precisely to the second
  
• Dark power reserve up to 3 years
  
• Perpetual calendar
  
• Radio reception in Europe, UK, USA, Japan