This Longines Master Collection Date 40, reference L2.793.5.79.7, has a Silver dial. The listed caliber is L888.3, but it may be equipped with an L619 or L888 (with -2 from 2017 onward and -3 from 2019) depending on production year.
Movement Type
Automatic
Caliber
L888.3Jewels
21
Reserve
65
Frequency
25200
Hands
Center Seconds
Shape
Round
Lug Distance
21.00 mm
Glass
Sapphire
Thickness
9.80 mm
Diameter
40.00 mm
Water Resistance
30.00 m
Dial Color
Silver
Material
Silver-Arabic Bracelet