These are single replacement o-ring watch gaskets. Sold as single O-rings NOT Packs.

When changing the battery it is always a good idea to change the oring as well as these stretch over time. This will help to maintain the orginal water resistence of the watch, however if they are used on water proof watches as seal pressure test should be done if it is important to know that the watch has retained it's water depth / pressure rating.

We know that it can be really difficult to know which size and diameter of gasket you which is why we offer multiple sizes. We suggest you measure the watch as best as you can and then purchase sizes bigger and smaller to ensure you have the right one. Please note the size shown is for the inner diameter of the oring X diameter of the oring.

If you are ordering more than one size we mount the orings on a tab taped to the envelope and mark each size with the dimension so you can tell which size is which and order the specific one next time.

We also don't charge extra postage for multiple orings.

Standard postage is royal mail second class which can take 3-5 days and the service level depends on the time of year. We do keep proof of posting for all items. If the item is time critical we suggest you upgrade to a tracked service.

Finally we are unable to offer advise for any specific watch so you will need to measure your watch.