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The Master Series features two chronographs in 45mm CARBONOX+ cases with orange details on the case, including SOS in Morse code for quick reference. The pushers of the chronograph are in solid stainless steel, while the stainless-steel crown has an orange rubber crown ring for easy grip.

This special timepiece is water resistant to 300 meters and sports a sapphire crystal with anti-reflective coating. One version of the 3740 Master series comes on a black rubber strap, while the other comes on anorange rubber strap. Both versions come with a compass already assembled to the strap.


45 mm
Stainless Steel case back and screwed on crown
Uni-directional turning bezel
Sapphire Crystal Glass w/ anti-reflective coating
Water resistant to 300 meters, 30ATM
RONDA 5030.D Quartz Movement, Chronograph function