ZENITH Defy 21 Skeleton El Primero 21 Automatic Chronograph 44mm Watch Various Necklace Pendant This not only ensures durability

This not only ensures durability but also enhances legibility under varied lighting conditions

thickness 15

This model is shown in a stainless steel case and bracelet

Longines Spirit exemplifies the pioneering spirit that has been at the heart of the brand since its inception

ZENITH Defy 21 Skeleton El Primero 21 Automatic Chronograph 44mm Watch Various Necklace Pendant This not only ensures durabilityThe high frequency El Primero 21 1 100th chronograph in a 44mm black ceramic DEFY case, paired with a black ceramic bracelet. Its automatic movement features two independent high frequency escapements beating at 50Hz for the chronograph function and 5Hz for timekeeping.