Tissot Sa

Laurie Saunders

Nicolas Ehrsam

A watch whose watch case includes a case middle and a rotating bezel provided with a bezel locking system. The system includes a rotating crown secured to an arbor, the arbor being arranged inside a radial hole in the case middle. By rotating the crown, the user can screw or unscrew the arbor with respect to the hole. The arbor includes a frustoconical section which interacts with a pin mounted perpendicularly to the arbor and returned towards the arbor by a spring. Screwing the arbor into the hole will cause the frustoconical section to push the pin into a receiving space provided on the lower surface of the bezel, which locks the bezel. Unscrewing the arbor automatically releases the pin from the receiving space by the return force exerted by the spring. The crown can include a helium valve mechanism.

Watch equipped with a rotating bezel with a bezel locking system provided with an integrated helium valve

The present invention concerns a portable object including a case () and a bracelet or strap (). The case includes a middle part () from which two pairs of horns () extend, the horns of each pair being connected by a guide element () defining a space in conjunction with the middle part. The portable object includes securing means () including a locking part (') inserted in each end () of the bracelet or strap and at least one groove () located on the middle part (). The securing means () is arranged to enable each end of the bracelet or strap to be inserted in the space defined by the middle part and the horns of each pair connected by the guide element (), such that the locking part () cooperates elastically with said groove to secure said bracelet or strap to the case in a simple manner.

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Cormondreche, Switzerland

Laurie Saunders