This El Primero chronograph displays a tourbillon visible through an aperture at the 11 o'clock position on the black dial. A patented mechanism displays the date around the perimeter of the tourbillon cage.
Movement Type
Automatic Chronograph
Caliber
El Primero 4035 DJewels
35
Reserve
50
Frequency
36000
Hands
Small Seconds
Shape
Round
Material
Stainless Steel
Glass
Sapphire
Thickness
15.60 mm
Diameter
44.00 mm
Dial Color
Black