correct dial size

[toptime810]

Can someone tell me what the correct dial size I should get for a 27.94 mm reading on my caliper. Also, correct size for a 29.43 mm reading for a crystal size, thanks

[bobm12]

That reading is the original dial or crystal? Or is it the "hole" where either one fits?

[toptime810]

original dial and outer reading on the watch case where the crystal fits on

[toptime810]

should I get a 28mm dial and a 30mm crystal?

[bobm12]

Yes and no!   For the dial 28 mm seems about right for the crystal it should be around 29.5 or less. Check on the sizes they come, you might need to either order one with a new "i" ring that fits the total measurement when together or glue one in place depending on case.

[toptime810]

thanks

[oldhippy]

I would say it depends on the type of case the movement is going to go in.

[rogart63]

Depend also how much you trust that your caliper is measuring right size. 

[jdm]

When measuring round objects, take at least 2 measurements at 90'. If it's a crystal, assume the larger one.

[ramrod]

what case and movement is this? i ask because most of the seiko (auto) dials are 28 mm.