Plaza Watch International - - Sihh Roundup -

Greubel Forsey Qp A Equa­tion

Cel­e­brat­ing only its tenth birth­day this April, Greubel Forsey – the com­bi­na­tion of Robert Greubel and Stephen Forsey – has been tipped as mak­ing watches des­tined to be­come his­toric bench­marks in watch­mak­ing for gen­er­a­tions to come. It al­ready has six in­ven­tions to its name. And the lat­est model is another: an in­ter­pre­ta­tion of one of the old­est com­pli­ca­tions, the watch has a me­chan­i­cal com­puter that al­lows the user to set a per­pet­ual cal­en­dar us­ing a bi-di­rec­tional wind­ing crown. That may not sound much – but watch­mak­ers will recog­nise what a mile­stone that is.

As co-founder Stephen Forsey has it, “it’s im­por­tant to recog­nise the com­plex­ity of that chal­lenge – to make a per­pet­ual cal­en­dar that’s ac­tu­ally easy to use. And if it was eas­ier to use there would be more of them on the mar­ket. When I worked at Asprey peo­ple would bring in theirs for us to set up – there was a sense they were do­ing it almost like a test.”

But, while im­pressed by the front of this pro­to­type, don’t for­get (as with all Greubel Forsey watches) to look to the in­vari­ably beau­ti­ful rear. Almost thrown in for good mea­sure on this watch’s back is an ‘equa­tion of time’ in­di­ca­tor, which shows the cur­rent dif­fer­ence be­tween so­lar and mean time – a prod­uct of the fact that the Earth’s or­bit around the Sun is, in fact, el­lip­ti­cal and ir­reg­u­lar. “It’s the ‘manta ray curve’ as the man who de­signed the graphic called it, after its shape,” says Forsey. The first time he re­ferred to that I had no idea what he was talk­ing about. I thought he was say­ing some­thing in Ger­man.”

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