Best grey Rolex dealer in London (greater London ok too)

[hemdale]

Hi chaps,

I know it's bad, really baaaad, but I litterally fell in love with the DateJust 116200 blue dial, stick index, roulette (red + black) date display, Oyster bracelet.

Can anyone recommend their best grey Rolex dealer in London / greater London ? Unless I have to fly to Scotland , I'm happy to take a train to find this beauty.

Any recommandation is more than welcome.

Thanks guys !