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Old 5 June 2022, 08:04 PM   #1
Pocosso
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Real Name: Davide
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1974 6105-8110 Crystal Info

Guys,
I am trying to restore a 1974 "Willard" I am looking for some info on the crystals, I noticed that the 320W10GN was available in 2 different Types, can someone tell me what is the difference and how to sort it?

Also I noticed that someone call the Willard Seiko 2nd Diver, what does it means?

I am new on Seiko and I love those vintage divers.
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5167-5711
6217-8001
16520A-16520E-16500-116610LV-166710LN-16760-16030-16570T-
ROO(Ti)-RO-ROC
PAN0055-PAM351-PAM733-PAM721
Type XX-XXI
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Old 7 June 2022, 05:35 AM   #2
SunTzu
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There are actually 3 types of crystals for the Willard. Given your year you want the most common Type II. So look for a 320W10GN00 Type II crystal. Type I is for early 1970 and type III is for 1976. Type II is for in between.

It is the second diver because it followed the first diver model which was the 62MAS. The 6105 series followed.


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