Blancpain

I am washing my ff every day with regulard handsoap.

It always makes the click sound again after a couple of turn a rounds.

I hope that after 4 times back at Blancpain your FF is now working properly after diving and swimming. Hard to believe that such an expensive and beautiful diver exhibits a problem that I never found in cheaper divers.

Did you send yours to New York to have it repaired and then waited all those weeks?

...defective click spring. But 4 times? Perhaps a batch of incorrect spec steel.

An easy, simple fix (literally 10min) if you have a replacement spring. I am surprised at the long service times.

...so I'll try to describe it. The bezel spring is a flat spring a bit like a thin washer. The washer has raised tabs that bite into serations on the underside of the bezel. The serations are angled such that the bezel can only rotate one way. If rotated anticlockwise, the bezel serations ride over the tabs. If clockwise, the tabs bite the serations and stop rotation.

These tabs have a history of breaking on a lot of watches, not just BPs, they're brittle and under reasonable stress. If the material is too hard, they may be even more brittle; if the tabs are badly stamped, there may be stress-raisers; if the material is not sufficiently corrosion resistant, the stressed tabs will weaken, water will encourage this.

...have an FF, but I have replaced these springs on several watches from various makers. Sometimes to repair a broken one, sometimes just to restore a nice strong 'click'.

Best of luck with yours.