The white gold A. Lange & Söhne Lange 31 ref. 130.039, released as a 100-piece limited edition at SIHH 2017, features a 45.9mm case and a grey dial. It utilizes the L034.1 movement, offering a 31-day power reserve.
Movement Type
Manual
Caliber
L034.1Jewels
62
Reserve
744
Frequency
21600
Hands
Small Seconds
Shape
Round
Lug Distance
22.00 mm
Material
White Gold
Glass
Sapphire
Thickness
15.90 mm
Diameter
45.90 mm
Dial Color
Grey
