Massimo Posted October 24, 2017 Share Posted October 24, 2017 Hi everybody, I need to replace the crystal of a 7s36-02t0. It is a hardlex crystal that I found available on ebay but it's definitely more expensive than a standard non branded crystal. Do you have any advise about material and size? Do I just have to check the diameter and thickness? Thanks a lot in advance! Inviato dal mio Lenovo K50-t5 utilizzando Tapatalk Link to comment Share on other sites More sharing options...
Chopin Posted October 24, 2017 Share Posted October 24, 2017 I think a regular mineral crystal from CousinsUK, for example, will do just fine. The only possibility is that the original crystal might have the edges a bit beveled/angled but it seems normal from the pictures so a non-OEM replacement would be fine if you ask me. Yes, thickness and the glass diameter will be important. Is the original gasket of the watch intact or do you need a new one ? Seiko original ones might be hard or expensive just like the glass but you could use non-OEM ones as well I think. Could also try CousinsUK for stocks and prices as well. I've noticed that some Seikos have a small metal spacer below the crystal gasket, perhaps to compensate the thickness... Link to comment Share on other sites More sharing options...
oldhippy Posted October 24, 2017 Share Posted October 24, 2017 All you need to do with Seiko glasses is what you have done quote the numbers on the back to order the correct re-placement, to be on the safe side you could just say its chrome or gold colour. Make sure you have a good fitting glass press to fit it. Link to comment Share on other sites More sharing options...
Massimo Posted October 24, 2017 Author Share Posted October 24, 2017 Thanks for the answers, the gasket seems OK, the watch is not that old...I wanted to avoid spending too much money if the glass is in fact the same. I know for sure the prices of original spare parts are always more expensive than what they should, especially for Japanese companies... Inviato dal mio Lenovo K50-t5 utilizzando Tapatalk Link to comment Share on other sites More sharing options...
oldhippy Posted October 24, 2017 Share Posted October 24, 2017 You say the gasket is ok. Do you mean the ring inside the glass? The new glass will come with a new ring. That is way I said you could just say its chrome or gold colour. The gasket is the part that goes around the part of the case that screws the case up and is a completly different part. Link to comment Share on other sites More sharing options...
Chopin Posted October 24, 2017 Share Posted October 24, 2017 1 hour ago, oldhippy said: You say the gasket is ok. Do you mean the ring inside the glass? The new glass will come with a new ring. That is way I said you could just say its chrome or gold colour. The gasket is the part that goes around the part of the case that screws the case up and is a completly different part. I don't think that this watch has an acrylic crystal with a tension ring if that's what you're referring to... 1 Link to comment Share on other sites More sharing options...
oldhippy Posted October 24, 2017 Share Posted October 24, 2017 51 minutes ago, Chopin said: I don't think that this watch has an acrylic crystal with a tension ring if that's what you're referring to... Fair enough. Good luck. Link to comment Share on other sites More sharing options...
jdm Posted October 24, 2017 Share Posted October 24, 2017 5 hours ago, Massimo said: I need to replace the crystal of a 7s36-02t0. Why? if it is just scratched you can also polish it. It will take more time but it can be done without removing it and you will have tools to do it on any other watch in the future. Search this forum for details. 2 Link to comment Share on other sites More sharing options...
Massimo Posted October 25, 2017 Author Share Posted October 25, 2017 Why? if it is just scratched you can also polish it. It will take more time but it can be done without removing it and you will have tools to do it on any other watch in the future. Search this forum for details. It's heavily chipped... It needs a replacement unfortunately!Inviato dal mio Lenovo K50-t5 utilizzando Tapatalk Link to comment Share on other sites More sharing options...
anilv Posted October 25, 2017 Share Posted October 25, 2017 I believe these use a light coloured nylon ring. These are a real @#$% to install. Good luck. Anilv Link to comment Share on other sites More sharing options...
ro63rto Posted October 25, 2017 Share Posted October 25, 2017 @Massimo30.0mm diameter and on another forum, someone measured it at 3.37mm thick but if you can take it out in one piece to confirm it, would be better.BTW part number is 300PX7JN03 and you can use SternKreuz as substitute crystals. Link to comment Share on other sites More sharing options...
Massimo Posted October 25, 2017 Author Share Posted October 25, 2017 Thanks a ton guys for the help! I'll try to pull it out first just to confirm as soon as I have some free time! Inviato dal mio Lenovo K50-t5 utilizzando Tapatalk Link to comment Share on other sites More sharing options...
ro63rto Posted October 26, 2017 Share Posted October 26, 2017 Be careful when you remove crystal. As it is chipped it is prone to shattering when removed. Link to comment Share on other sites More sharing options...
Massimo Posted October 26, 2017 Author Share Posted October 26, 2017 Be careful when you remove crystal. As it is chipped it is prone to shattering when removed. Indeed, already happened with an Orient Oxo Racer... Not pleasant. Inviato dal mio Lenovo K50-t5 utilizzando Tapatalk Link to comment Share on other sites More sharing options...
Massimo Posted October 27, 2017 Author Share Posted October 27, 2017 I asked a quote to cousins and they said the item is "restricted"... No idea of the meaning... The replacements unbranded are available in 3 or 3.5 thickness, whiskey one should I pick? Inviato dal mio Lenovo K50-t5 utilizzando Tapatalk Link to comment Share on other sites More sharing options...
PJA Posted October 27, 2017 Share Posted October 27, 2017 (edited) I'm just curious. There is no place to buy parts in Japan? It will probably easier, faster and maybe also cheaper for you. And if you will find let the rest of the community here know about it in order to add one more source. Edited October 27, 2017 by PJA Link to comment Share on other sites More sharing options...
ro63rto Posted October 27, 2017 Share Posted October 27, 2017 I asked a quote to cousins and they said the item is "restricted"... No idea of the meaning... The replacements unbranded are available in 3 or 3.5 thickness, whiskey one should I pick? Inviato dal mio Lenovo K50-t5 utilizzando Tapatalk Probably means it's no longer made by Seiko.As for size, you should get the one that is as close to the original as you can get. Did you measure thickness of the one that's on the watch?Jkhorological in Hong Kong has a good selection that might be quicker to get hold of. Link to comment Share on other sites More sharing options...
jdm Posted October 27, 2017 Share Posted October 27, 2017 3 hours ago, PJA said: I'm just curious. There is no place to buy parts in Japan? It will probably easier, faster and maybe also cheaper for you. And if you will find let the rest of the community here know about it in order to add one more source. There is no place at least for watches like this, which were made for export, outside Japan. Then when it comes to buying parts there are no large "material houses" which sell online, like there are in the West. 1 Link to comment Share on other sites More sharing options...
jdm Posted October 27, 2017 Share Posted October 27, 2017 On 10/25/2017 at 7:53 AM, anilv said: I believe these use a light coloured nylon ring. These are a real @#$% to install. Nylon gasket you mean? Not difficult to install with a decent press and checking the crystal stays aligned all the way down. Link to comment Share on other sites More sharing options...
Massimo Posted October 29, 2017 Author Share Posted October 29, 2017 Case dismantled, it was chipped by the inside.There is no tension ring, only a nylon ring in the case.I think 3.5mm would do the job.Can I refit it with a hand press? Link to comment Share on other sites More sharing options...
ro63rto Posted October 29, 2017 Share Posted October 29, 2017 Yes handpress will be ok Make sure the nylon gasket is not damaged and the case is cleaned of all glass particles before refitting new crystal. It does look slightly under 3.5mm though. Link to comment Share on other sites More sharing options...
jdm Posted October 29, 2017 Share Posted October 29, 2017 7 hours ago, Massimo said: Can I refit it with a hand press? What is that? No hydraulic presses are used in watchmaking Link to comment Share on other sites More sharing options...
ro63rto Posted October 29, 2017 Share Posted October 29, 2017 What is that? No hydraulic presses are used in watchmaking [emoji3] Probably meant lever (hand) operated as opposed to the rotary ones. Link to comment Share on other sites More sharing options...
Marc Posted October 29, 2017 Share Posted October 29, 2017 52 minutes ago, jdm said: What is that? No hydraulic presses are used in watchmaking Nothing is impossible!!!!! https://www.ebay.co.uk/itm/Watchmakers-Pneumatic-Tool-BERGEON-SWISS-MADE/182835403702?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D20140122125356%26meid%3D243267436c054767a13b19855c779fe9%26pid%3D100005%26rk%3D6%26rkt%3D6%26sd%3D182835386802&_trksid=p2047675.c100005.m1851 and https://www.ebay.co.uk/itm/Watchmakers-Pneumatic-Tool-BERGEON-HORIA-SWISS-MADE/182835406006?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D20140122125356%26meid%3D243267436c054767a13b19855c779fe9%26pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D182835386802&_trksid=p2047675.c100005.m1851 pneumatic rather than hydraulic but it's not a million miles out. Link to comment Share on other sites More sharing options...
Massimo Posted October 29, 2017 Author Share Posted October 29, 2017 Indeed! Lever, not screw operated! Link to comment Share on other sites More sharing options...
Recommended Posts