Debuting in 2001, the Langematik Perpetual Calendar ref. 310.025 combines a platinum case with a silver dial. The initial square corrector button at the 10 o'clock position was replaced by a recessed version around 2004.
Movement Type
Automatic
Caliber
L922.1Jewels
43
Reserve
46
Frequency
21600
Hands
Small Seconds
Lug Distance
20.00 mm
Material
Platinum
Glass
Sapphire
Thickness
10.20 mm
Diameter
38.50 mm
Dial Color
Silver
