Collection
Xl pilot
Watch name
Chronograph Full calendar
Dial
black
Reference
P551-a1
Case
Material
stainless steel (316L)
Glass
mineral
Surface
polished
Water resist
3 ATM
Glass back
yes
Size
44 mm
Crown
not screwed
Band
leather
Strap width
22 mm
Movement
Manufacturer
Valjoux, Les Bioux, Switzerland (since 1901) now Member of ETA SA
Caliber
Valjoux 7751
Date
yes
Weekday
yes
System
automatic
Energy
mechanical
Jewels
25
Vibrations
28´800 A/h