Rolex Lady Datejust is the elegant cousin of the Datejust and is the perfect timepiece that seamlessly can be added to a lady’s jewelry collection. The 179138 has a 26mm yellow gold case with a screw-down crown, a solid case back and a scratch-resistant sapphire crystal. The bezel is yellow gold and set with 42 diamonds. The dial is black with index hour markers and a date window at 3-o-clock. The 179138 is powered by the self-winding 2235 caliber which has superlative chronometer certification with date functionality and a power reserve of 48 hours. This diminutive case is paired with an equally delicate yellow gold president bracelet that has a fold-over clasp. It has a water resistance of 100 meters (330 feet).