Case- 38.5mm
Movement- Manual Winding
Dial- Blue Dial (Regular Production from 1997 to 2002)
Back case- Sapphire crystal
it was made available in no less than four different versions with four distinct reference numbers, namely 101.007, 101.027, 151.007 and 151.027.
101.007 – Lange 1 with solid caseback (available 1997-1998)
101.027 – Lange 1 with display caseback (available 1997-2002)
151.007 – Lange 1 with solid caseback and integrated bracelet (available 1997-1998)
151.027 – Lange 1 with display caseback and integrated bracelet (available 1997-2000)
