Dual-time men's wristwatches, such as the 8644-3 Zeppelin LZ126 Los Angeles series, became more than 100 years old when airships shortened travel times to the extent that it was no longer the calendar but a good wristwatch that indicated the time to go. The 8644-3 continues the tradition of this era with a finely grained leather strap, a polished stainless steel case in Art Nouveau design and a dial with a clear structure. Even the double crown refers to two time displays, with one in the small round faucet above the six. Among the Twelve, the big date allows reading the day of the month. Exceptional is the Pulsometerkala for measuring the pulse rate, which was formerly reserved for specialty watches for medical professionals. The nostalgic, German-made men's watch 8644-3 has a modern heart from Switzerland, the Ronda quartz caliber 6302.B, equipped with magnetic field shielding and shock resistance. A men's watch, modern and stylish at the same time.