Day-Date 40 Black Bay 31/36/39/41 S&G are filled or coated with

are filled or coated with a luminescent material emitting a long-lasting blue glow - for up to two times longer than traditional phosphorescent materials

with TUDOR "T-fit" folding clasp and safety catch

The bezel features a tachymetric scale to read average speed over a given distance based on elapsed time

John Hardy sterling silver and diamond accented necklace showcasing a low-profile circle pendant that features a technically masterful weave reminiscent of knit textile

who no longer needs to think about adjusting the date at the end of a 30-day month

Day-Date 40 Black Bay 31/36/39/41 S&G are filled or coated withEisenkiesel dial This dial features 10 baguette cut diamonds. The Oyster Perpetual Day Date 40 is presented with a dial made from eisenkiesel, a deep brown decorative stone used by the brand for the first time in 2021. Eisenkiesel is an iron oxide, delicately veined quartz. The stone discs destined for the dials are cut from a block of raw material. Only those whose colour and structure fully satisfy the brands exacting aesthetic requirements are