At last we also get much better looking black lettering for the day and month rather than hideous but 'traditional' red. JLC also adds a useful if rather over emphasised power reserve feature so sadly lacking on the outgoing model. Personally, I am very sad to see the demise of the dauphine hands (compare them on the beautiful Réserve de Marche model). Frustratingly missing any sort of tick mark for minutes to help accurately set the time just like the old one, it still looks good, but is now up to a fashionable 40mm in diameter which will attract as many people as put others off.
Whilst the new Patek Philippe 5146 Annual Calendar heads towards JLC styling, ironically the JLC Master Calendar nods towards traditional Patek Philippe Perpetuals. It's a shame that JLC didn't follow through the adopted style with introducing at least an annual calendar mechanism like Patek's shown below to save the owner the bind of changing the end of 30 day months but for an annual adjustment in February:
Picture from "Watch day display mechanism" Swiss Patent CH685585