Jaeger LeCoultre Master Compressor Automatic 172.84.20 (q1728420) Details:
Stainless Steel Case, Stark White Dial with silver toned Arabic Numeral & Index Hour Markers, Luminous Hands. Automatic Movement, Features a stylish elongated Date window at the 3 oclock position & Bi-directional Rotating bezel (under the crystal) which is set by the top crown. Water Resistant to 200m/660ft by a revolutionary new patented design - Although the crowns are not "screw down" they are equipped with an external butterfly collar that turns 1/2 turn clock-wise & counter clock-wise (independently of the crown), each collar has red & white enamel indicating arrows. White arrow indicates the crown is secure/water resistant, Red Arrow indicates the crown is non-secure/non-water resistant. When the collar is in the secure position it compresses a gasket that ensures water resistance.