SEIKOOriginal SEIKO Capacitor 3023.5MY

Works properly for my Seiko Kinetic watch. It did take a few days to reflect full charge when checking charge. I had read in a few other reviews it will not fully charge. I think maybe the reviews were posted before allowing it to fully charge. It was very easy to replace after watching a video online. I bought this for a watch that is not worn daily and I am happy to have it working properly again.

Arrived quickly enough and with a charge that borderlined 2/3's capacity (which is normal storage voltage).Tips for others: watch the videos and find pictures of your movement detailing battery, insulator, and washer alignment. Pay particular attention to how the left battery anode slides UNDER the copper contact of the movement. Be sure not to pin the cathode contact under the battery. Be careful not to short the battery with metal tweezers (if so, no more than microseconds). A little down pressure with the screw driver was necessary for me, but as soon as the torque broke I eased off. A cheep 15x jeweler's loop is essential for aligning battery, insulator, and washer - but reading glasses worked best otherwise. Have a magnetized jeweler's screwdriver - cheap eyeglass screw drivers can be sharpened with a nail file and magnetized by rubbing it over a refrigerator magnet a few times. Do your work over several squares of white paper towel, or a white cotton sheet - when a screw only half a mm long jumps out from under your screw driver, the paper towel/ cotton cloth prevent the screw from continuing it's skid off the hard surface of a table and vanishing forever on the floor. Even so, and in either case, in the event of a list screw an extremely bright flashlight held sideways to your line of vision and closely parallel to the surface you suspected it landed on all but encourages the list screw to jump back into the watch and screw itself in - this has never failed for me as even the smallest objects can cast the biggest shadows this way. When removing waterproof casebacks get a cheap waterproof case back wrench - they're less than $10, and the two point "sliders" work great. DON'T use a pair of scissors ...If you get alignment of the battery, insulator, or washer wrong the watch may still work, but not recharge or short out intermittently and did in a month.Use Vaseline or silicon grease to cost the case back side of the rubber gasket mating surface ... Or do one side of the other but not both! I personally would NOT grease the rubber O-ring itself and here's my logic based on experience: there needs to be a dry surface for the clean but dry o-ring to stick to as the case back is screwed down right. You do want one of the two metal surfaces to be lubricated so that it doesn't shared the rubber ring, but if the rubber ring is allowed to slip against both surfaces as the case back is tightened it will slip outwards (stretching as it does) and it will keep its new size bulging out one side of the watch or the other and you have to replace the o-ring that makes your watch waterproof.

Works perfectly

The pictures don't do it justice. These parts are beyond SMALL. I have a micro screwdriver set and a magnifier and the parts were too small to install correctly. And if you touch one of the watch parts close to the screw, it shorts out the capacitor. I'm not sure what I did, but it didn't work and was way to small to ever try and do this again

I bought a kinetic Seiko at an estate sale that has some age on it. I took a chance that it needed some service to make it functional again. I ordered a new capacitor from Amazon, had a watch maker install it, and it works like new again. Holds the charge great.

My seiko sort Kemerovo works again! I missed my watch, and now I can wear again. It actually works better than new. I didn’t wear it for 2 weeks, and when I picked it up. Still keeping perfect time!

Be aware that successfully installing this kit, even with all the proper tools, is no trivial undertaking. Don't get me wrong. The parts are exactly what you need to get your old Seiko Kinetic going again. It's just that replacing the parts in your watch with these requires hours of trial and error - not to mention tracking down nearly microscopic screws when they go flying. One disappointment with my kit was that the new insulator was curled up like a potato chip (pictured) and unusable in that state, because it must lie flat enough to allow for installation of the capacitor retaining plate over it. I don't know if my insulator could have been flattened out enough to enable that or not. The old insulator was still just fine, so I used that, instead. One star off for this.Bottom line: my old Seiko Kinetic works better than ever with this replacement installed, but it was a bumpy road getting there. Attempt at your own peril.

this battery is a bit of a challenge to install---can't be sure how old the battery is either. the last one was only a couple years old. If you want to install this battery, order 2 extra screws. You may have one go away on you. If you have done this before, I don't need to say anything. I got this one done and I still have 2 extra screws. I can't figure out how those screws are made--I can only tell they are screws by looking at them under magnification.