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New crystal for a Seiko 7T62-0DB0


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6 hours ago, arnaudG said:

I am looking for a new crystal. Here is the reference: 310P03HN03

It's a regular flat crystal, you can fit a generic cone for $1. Or a sapphire to not worry again about it.

747d1f4a-d478-4576-845a-4c8ad1f25c2d.jpg

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Thank you for your help. Both options are reasonable.

Can someone explain me what the "310P03HN03" reference means? I assume that 310 refers to 31.0 mm diameter. What about the thickness? is 03 for 3mm? I don't have any measuring tools. What about the bevel if I go for a custom crystal?

Thanks!

 

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14 minutes ago, arnaudG said:

Can someone explain me what the "310P03HN03" reference means? I assume that 310 refers to 31.0 mm diameter. What about the thickness? is 03 for 3mm? I don't have any measuring tools.

Have a check of the attached. You definitely need digital calipers when working on watches, as well a crystal press.

Crystal Codes.pdf

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