Portable timepiece with a crown protection and locking device

Portable watch

Portable watch

Precious metal chronograph watch with a hollowed middle...

Pressure compensated watch enclosure

Protective indicator ring for a wristwatch

Push button and method for assembling such push button

Push button assembly for an electronic wrist instrument

Pushpiece for a diver's timepiece

Safety valve for a timepiece

Safety valve for diver's timepiece

Scrapbook clock

Screw-on watch stem seal

Sealed wrist watch case

Sealing device for watch crown

Solar battery powered timepiece

Timepiece comprising a rotatable bezel

Timepiece including a movement mounted in a casing ring

Timepiece with multifunctional member

Transparent scratchproof closure element for a watch case and wa