Any advice would be great Seiko 4336 8129

[Jpfarro]

Hello everyone,

My name is John but you can call me Jack. I am new the group here and have been a hobbyist repairer for the past 2 + years. I mainly stick with mechanical watches but from time to time I will tinker with old quartz Seiko watches which I love. A current project that I have been trying to get down is a Seiko 4336 8129. This watch has been fighting me from the start. Well the movement was dead due to a broken pivot on the motor. So I sourced a replacement movement. Next Crystal was cracked so I removed the broken glass but can't figure out how to take the top bezel ring off. I have some pics. This poor watch has had a rough life. I was trying to bring it back!! Thank you for reading my tale of woe!!

 

[oldhippy]

It doesn’t come off. Those screws are just for show, just dummy screws. To obtain the correct glass you need the numbers on the back of the case. It is a press in glass, so you need the right type of glass press. Don’t forget to ask for crome/ white metal as it will have a ring inside, you don’t want a gold looking one.

[jdm]

1 hour ago, oldhippy said:

It doesn’t come off. Those screws are just for show, just dummy screws. To obtain the correct glass you need the numbers on the back of the case. It is a press in glass, so you need the right type of glass press. Don’t forget to ask for crome/ white metal as it will have a ring inside, you don’t want a gold looking one.

You're probably right about the case being one piece, but sometime with Seiko is hard to tell. They manufacture two piece cases even for cheap models. However, I do not see any need to remove the bezel, just give a reasonable polishing overall.

Regarding the crystal, we can't tell what it is as it's  The number on case back have been given above as 4336 8129, however  it could be a regular flat for which no original part is needed , just order by size, and consider a type I gasket too.

[Jpfarro]

Well it turns out that this Seiko infact gets a press in Crystal. I was able to salvage the black flat gasket and order a couple of 1.5mm mineral crystal. Another learning moment for me. Much thanks to all who pointed me in the right direction.

 

[Jpfarro]

Well here it is now. I repaired the movement new glass. This old watch has had a hard life and it shows. I still need to source  a battery door gasket, crystal gasket (reused the old one for now)  and correct silver chapter ring around day/date. I left the sweep a tad bent to remind me that all things are not perfect. 

[Jpfarro]

New Gaskets, glass and battery.  and I did put in the chapter ring around the day/date. I am very happy to bring this 78' back to life. 

[jarz21]

Pardon my digging up this old thread, but I wanted everyone to know that the bezel is NOT part of the case on this watch. Such tight tolerances that it looks like it, though!

I installed a new 29.0x1.5mm flat sapphire crystal from Cousins UK. And it's better to remove the bezel before trying to press out the old crystal or else it will likely shatter.

Edited August 16, 2024 by jarz21