If you have expensive watches, stick to going to a jeweler for service. There is nothing at all in this kit that is usable to me except maybe the pins for shortening a watch band. But I already had a band tool with pins. The rest of the stuff is useless as I coulld not even get the back of of one of my watches to replace the batteries.

Everything in this set is rudimentary and cheaply made out of pot metal and plastic, however if you are just starting out with your first few Chinese or low-cost watches, this may be enough get you started. At least you can adjust the straps and bracelets - BUT BEWARE! - use with EXTREME care or you will break, bend or slip and you can scratch your new watchbands.Though this IS probably the best way to start out. It will teach you to be very careful when doing just about anything. If you do purchase a $750 Seiko and want to do some light work, get better tools!!!!Especially if you are going to attempt to remove any components, or carefully lubricate the jewels. If you are going to try to just learn to adjust your bracelet, this is probably the way to go. But it isn't even worth passing down. It's probably best to keep it around for emergencies because if you are ever going to try to learn how to clean and maintain real mechanical watches, this will only prove barely adequate at best, and even possibly end up damaging something.I must say this once again - This is Barely Adequate for any part of doing any watch work that involves opening the case!If you move up into higher quality stuff, it's probably best to just throw this away instead of allowing someone else to find it and try to use something out of this kit and and up damaging something. Everything bends very easily, the spare parts included are all the wrong ones unless you are very lucky.No bracelet screws or split pins are provided, only the spring types, and there are about 100 of them, and they are incredibly cheap! You will end up scratching something with these tools. Just warning you~!