Convenient clock I've ever worn and very nice. Is super fast, pressed on and pulled out and not twinge. But I also slim wrists and since the clock is pretty inflexible them unsuitable for wide wrists. Got a lot of compliments for the optics. One of the rings is not glued properly and sliding down, at the price I can see over it but because of time. When hand washing and rinsing careful because the clock is not waterproof.