Casio bracelet resizing.
Some Casio models features the bracelet system I first encountered on the first Casio Oceanus Manta series and featured a solid pin and split collar or collet link fitting.
Always an issue for folks not used to it, any resizing has to be done with considerable care and I include third parties. For example if you decide to get your local Jeweler to do this – they may very well not be familiar with this system and could very easily lose collars if not forewarned.
So in the light of this and my experience with my old Casio Oceanus and now this model, I attach a couple of images to illustrate, which may help those not in the know.


The images above can be seen more clearly by clicking directly on each one – this should open full size.
The bracelet resizing is actually quite easy and I usually use a cheap blue plastic bracelet pin pusher thing you can get almost anywhere on Ebay – it does fine. It starts the initial push of the pin in the direction of the arrow – you then use a thin and longer pin pusher to fully push out the link pin (maybe assisted by a pair of pliers). Once out gently part the links and you will see the tiny collar in the link centre hole – tip it out on to your table so you don’t lose it when moving the watch and bracelet around. Once you’ve repeated this by removing the link at the end with the same procedure, re-insert the split collar and then mate the two link ends together and re-insert the pin with the arrow, fully – and you’re done.
A word of advice if you’re using tweezers on the collar, grip it very lightly. Use too much pressure and you slip – suddenly – ping! . . . . the collar’s gone – and I guarantee you’ll never find it! 😉
Note – On some Casio bracelets you find the small split collar (collet) on a different part of the link – so when refitting the pin, I find it better to tap it in the same direction that the collar drops into the link. Not a problem if you don’t but I’ve always found it more efficient if you do.