Rolex Steel and Yellow Gold Datejust 31 Watch - Domed Bezel - Slate Grey Roman Dial - Jubilee Bracelet - 178243 grj 39.8 transparent back set with an

transparent back set with an 18K Sedna gold central Observatory medallion

a watch with an iconic function at its heart to notify divers when it was time to surface through an alarm

black rubber strap with blue stitching

Housing the impressive movement is a 44-mm fine-brushed and polished steel case equipped with a black ceramic tachymeter bezel

Rolex Steel and Yellow Gold Datejust 31 Watch - Domed Bezel - Slate Grey Roman Dial - Jubilee Bracelet - 178243 grj 39.8 transparent back set with an31mm stainless steel case, 18K yellow gold domed bezel, slate grey dial, Roman numerals, and stainless steel and 18K yellow gold Jubilee bracelet.