First-rate A. Lange & Sohne 1815 Quality Mens 231.031 Automatic Black Leather watch comes with great quality and outstanding performance. This Mens watch is powered by an excellent Automatic. Black Leather bracelet around your wrist is very comfortable. Black dial is easy to read. The pink gold case has a very classic Round shape. The size of the watch is 35.9 mm. It also had good waterproof function.