Certina 0821 449 ladies gold watch 1970 (ish)

[EtronX]

Well gentlemen, here I go again. EtronX does things he does't know how to do...
 
To make a long story short:
 
I have always liked wrist watches. Lately I have bought a few. And lately I've dug up some old ones. They have been laying in a drawer for years.
 
I have also always wanted to be able to take a watch apart, clean it, oil it and put it back together. So now I have bought some basic equipment and taken an old Omega ladies watch apart. It did not run before I took it apart. Thats in another post. Looking for a glass for that one. Then the plan is to put it back together. Hopefully running again.
 
So to the matter at hand. The old Certina after my mother. It runs, but the glass is pretty worn. I took out the dial and movement without problem. The case and bracelet is beeing cleaned as I write this. Again I have searched the interwebs for info on the watch, and again I came up a bit short. Well I found a good description of the caliber. The Certina 13-21. So far so good. The problem is the case and the glass.
 
Can anyone please guide me to a place where I can get a new glass for this watch?
 
Attached is some pictures of it before cleaning.
 
The dial

 
The calibre

 
Case from the front

 
Case from the side

 
Case from the back

 
Case lid from the outside

 
And finally the case lid from the inside

 
 
Sent from my Commodore 64

[Chopin]

Can't tell whether it's a press fit (from the top) or glued to the case (installs from the inside of the case) but either way cousinsuk.com will have you covered.

[rogart63]

The crystal looks like it could be polished. A little small but tape the case for protection. Lot of threads on polishing acrylic crystals on the forum. I see one problem . The crowntube is a little deformed. That has to be changed. 

If you like to change the crystal anyhow you could probably use a Sternkreuz  ATC  crystal.  With gold tension ring.  You have to measure the old crystal and order one in the same size. 

Cousinsuk is the best place to order from i think. 

[wls1971]

If you want to know about the watch, the serial number is the long number 8 million dates it to about 1970-1971.

The other number is broken down as follows the first two digits are the code for the movement used 08 was used for calibres 13-20, 13-21, 13-22 the second two digits 21 are Certina's code for a stainless steel case with gold cap probably 18 ct but could be 14 ct.

The other number 449 is the model number.

[EtronX]

The crystal looks like it could be polished. A little small but tape the case for protection. Lot of threads on polishing acrylic crystals on the forum. I see one problem . The crowntube is a little deformed. That has to be changed. 
If you like to change the crystal anyhow you could probably use a Sternkreuz  ATC  crystal.  With gold tension ring.  You have to measure the old crystal and order one in the same size. 
Cousinsuk is the best place to order from i think. 

Thank you for the reply. I'll check the crowntube. It looked OK when I took it apart. The photos are taken on an iPhone through a loupe. That might give some distortions.

I went into Cousins and looked there. Tried to search, but found no info or parts for the 449 case. I'll try some more.


Sent from my Commodore 64

[Chopin]

You don't need to search for your specific model as you won't find one. This watch has a generic acrylic crystal like most vintage watches.

[EtronX]

You don't need to search for your specific model as you won't find one. This watch has a generic acrylic crystal like most vintage watches.

Roger that. So I guess I just measure the diameter of the glass and order the same size then.

Thanks for the reply.


Sent from my Commodore 64

[Chopin]

Normally there are many types of crystals so you should measure a couple of things. Crystal diameter, diameter, thickness and height of the gasket provided it has a gasket. Some have an internal tension ring.

Be sure to get the one that is similar in type to yours. Wouldn't necessarily be a problem if you ordered a different one but I'm assuming you wanna go for originality as much as possible.

You can try and order a crystal that is 0.1-0.2mm larger in diameter than what you've measured. If it's slightly too big you can just sandpaper the edge a bit.

[StuartBaker104]

You will need to remove the crystal to measure it. It will most likely push out from the inside with a firm push with your thumb