Crystal

[mcoulton]

Hello. I'm looking at two types of crystals from Cousins supply house in the UK. Both are the same size and material, except one is SR (Steel Ring) and the second is GR (Gold Ring). I don't know what the terms mean in relation to the watch I'm working on. I plan on gluing the crystal into a metal bezel. Which one do I need to purchase? It's an inexpensive watch. I've written to Cousins directly, however they won't advise on the type of crystal I need - even after including pictures.  Can someone advise me if I'm on the right path or can you suggest an alternative? 

Thanks in advance for any help that can be provided. 

The Cousins Item Numbers are G22738 + G22739

Current Crystal is acrylic - at least that's what it feels like to me. 

Outside Diameter = 31.09 mm

Inside Diameter = 29 mm

Height = 3.81mm

Domed Surface

Cyclops

Acrylic

Glued in place to Bezel

Bezel glued onto watch

[AndyGSi]

The ones you're looking at on Cousins are Tension Ring Acrylics hence the Silver or Gold to match the watch case.

Why are you planning on gluing it in place as most domed crystals are tension fit either with or without a ring?

Edit

What's the diameter of the case opening and what does it look like?

I think you'll be better looking at something like these.

https://www.cousinsuk.com/product/high-dome-with-calendar-lens-sternkreuz-cl-clh

Edited February 4 by AndyGSi

[mcoulton]

Hello. Thanks for the response. 

The diameter of the case opening is 29.58 mm.

I've added some more pictures. 

[AndyGSi]

This is more awkward as the key dimension is the I/D of the lens but most are listed with O/D only.

20 minutes ago, mcoulton said:

The diameter of the case opening is 29.58 mm.

Is this the I/D of the lip or O/D?

Edit

Here's an example of what you'll possibly need.

 

Edited February 4 by AndyGSi

[mcoulton]

Hello. It's the outside diameter of the lip. Thanks.

 

[AndyGSi]

I think you're in for a bit of trial and error with this and would need to add the date bubble to a blank lens.

You may get away with a Sternkreuz HW or HWS

[mcoulton]

Okay. Thanks the help. I'll look into Sternkreuz HW or HWS.