The updated shock system combined with other updates (parachrom, Chromalight, larger twinlock crown) makes the Rolex Explorer II 216570 one of the most modern Rolex watches. The stock bracelet the Explorer II came with needed a link since it was to small for me, an authorized local Rolex dealer was very accommodating to fit mine in minutes. When it was released at Baselworld way back in 2011, the Explorer II Ref.216570 was the first watch from Rolex to utilise their then new Calibre 3187. It was ... Read this article | User's blog