A great watch that boasts a mechanical perpetual calendar on a dashing high end timepiece is the A Lange & Sohne Langmatik. This piece is available in gold or platinum and has a 38.5mm wide case. With the automatic movement with a rotor this timepiece gives near perfect time keeping and is a great reason for the popularity of this watch. This watch is a highly complex watch with an exquisite rich look to it. The automatic rotor is solid gold while the balance cock is hand engraved. The watch organizes a lot of information well on the dial. The time and date, which are sought out with the eyes most often are the easiest to see. The oversized big-date feature is nice for the wearer who needs to see it at a glance. The A Lange & Sohne Langmatik carries easy to read lume covered hands. There also are subdials including info for the day, month, year, moon phase, 24 hour hand, and seconds. This watch has a timeless elegance that the owner will cherish.