Most immediately obvious are The shortage of crown guards and also the Primarily slender scenario. The crown is likewise significantly little, at five.3mm. Commencing creation at the same time as the ref. 6200, the Submariner ref. 6536 returned to some thinner scenario and scaled-down crown (and 100m drinking water resistance) https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/