The Longines Heritage L4.685.4.76.2 has a 35.50mm stainless steel case, housing self-winding caliber L609.2, and a silver dial.
Movement Type
Automatic
Caliber
L609.2Jewels
27
Reserve
42
Frequency
28800
Hands
Small Seconds
Shape
Round
Lug Distance
18.00 mm
Material
Stainless Steel
Glass
Plexi
Diameter
35.50 mm
Water Resistance
30.00 m
Dial Color
Silver