As the ivory-dialed counterpart to the PAM 250, the PAM 251 essentially replaces the 188. It also uses a stainless steel case and the OP XII movement.
Movement Type
Automatic Chronograph
Caliber
OP XIIJewels
27
Reserve
46
Frequency
28800
Hands
Small Seconds
Shape
Cushion
Lug Distance
24.00 mm
Material
Stainless Steel
Glass
Sapphire
Diameter
44.00 mm
Water Resistance
100.00 m
Dial Color
Ivory