Brand: A Lange & Sohne
Style Number: 101.030
Also Called: 101-030
Series: Lange 1
Style: Mens
Case: 18k White Gold
Dial Color: Gray
Watch Bracelet / Strap: Leather - Black Crocodile
Watch Clasp: 18k White Gold Tang Buckle
Movement: Mechanical, Manual-wind
Engine: Lange Caliber L901.0 (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: 38.5 mm
Case Thickness: 10.0 mm
Caseback: Transparent Sapphire Crystal Display Black
Bezel Material: 18k White Gold
Bezel Function: Fixed
Water Resistance: NOT WATER RESISTANT
Crown: 18k White 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
Watch Bracelet Width: 16.0 - 20.0 mm