235.021 A. Lange & Sohne. This Yellow Gold Watch has polished bezel and Silver dial with small sub-dial. Blue hands and black Arabic numeral hour markers. Minute markers around the outside the band. Stop seconds for exact time setting. The front and case back are Scratch Resistant Sapphire crystal. Dark Brown leather strap with Tang clasp. Manual Movement with 55 hours of power reserve, Analog display. Water resistant at 30 meters / 100 feet. The Watch comes with 38.5 mm gold case. 235.021 A. Lange & Sohne 18K Yellow Gold Watch.