Brand: A Lange & Sohne
Style Number: 115.031
Also Called: 115031
Series: Grand Lange 1
Style: Mens
Case: 18k Rose Gold
Dial Color: Black
Watch Bracelet / Strap: Leather - Black Crocodile
Watch Clasp: 18k Rose Gold
Movement: Mechanical, Manual-wind
Engine: Lange Caliber L901.2 (Twin Mainspring Barrels, 21,600vph, 53 jewels, 365 parts)
Functions: Hours, Minutes, Small Seconds at 5, Power Reserve at 3, Patented Date Mechanism
Crystal: Sapphire Crystal
Case Diameter: 41.9 mm
Case Thickness: 9.9 mm
Caseback: Transparent Sapphire Crystal Display Black
Bezel Material: 18k Rose Gold
Bezel Function: Fixed
Crown: 18k Rose Gold, Fluted
Calendar: Big Two-digit Date at 2 o'clock: Patented two-disc date mechanism
Power Reserve: 72-hour power reserve
Watch Bracelet Length: 8.0 inches
Style Number: 115.031
Also Called: 115031
Series: Grand Lange 1
Style: Mens
Case: 18k Rose Gold
Dial Color: Black
Watch Bracelet / Strap: Leather - Black Crocodile
Watch Clasp: 18k Rose Gold
Movement: Mechanical, Manual-wind
Engine: Lange Caliber L901.2 (Twin Mainspring Barrels, 21,600vph, 53 jewels, 365 parts)
Functions: Hours, Minutes, Small Seconds at 5, Power Reserve at 3, Patented Date Mechanism
Crystal: Sapphire Crystal
Case Diameter: 41.9 mm
Case Thickness: 9.9 mm
Caseback: Transparent Sapphire Crystal Display Black
Bezel Material: 18k Rose Gold
Bezel Function: Fixed
Crown: 18k Rose Gold, Fluted
Calendar: Big Two-digit Date at 2 o'clock: Patented two-disc date mechanism
Power Reserve: 72-hour power reserve
Watch Bracelet Length: 8.0 inches