Description
The high-frequency El Primero 21 1/100th chronograph crafted in a light yet rugged 44mm carbon fiber DEFY case with a black rubber strap. Its automatic movement features two independent high-frequency escapements beating at 50Hz for the chronograph function and 5Hz for timekeeping.
Rolex GMT-Master II, 40mm, 18k Yellow Gold, Ref# 126718GRNR-0001