18ct Rose gold Lange & Sohne Lange 1 Model 191.032. Case diameter 38.5mm with sapphire crystal see through case back. Movement: Lange & Sohne Caliber 121.1 Silver dial with applied rose gold hour markers in a combination of diamond shaped indexes & Roman Numerals. Fine printed minute track. Polished rose gold hands. Brown Alligator strap and 18ct Lange buckle. Box and papers dated March 2017. reference S22249.