The angular, integrated bracelet steel case of the Rolex ref. 1530 was originally designed for the Oysterquartz. In 1975, before introducing the Oysterquartz, Rolex produced a limited number of ref. 1530, housing the chronometer-certified, caliber 1570. T...
I would love to add one to my collection but it is hard to find a good one, most available ones have overpolished cases or dials that have seen better days...