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Pocosso · 5 June 2022, 08:04 PM

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.

SunTzu · 7 June 2022, 05:35 AM

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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5 June 2022, 08:04 PM	#1
Pocosso "TRF" Member Join Date: Sep 2017 Real Name: Davide Location: Italy Watch: RO/ROO/PAM/DAYTONA Posts: 402	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. __________________ 5167-5711 6217-8001 16520A-16520E-16500-116610LV-166710LN-16760-16030-16570T- ROO(Ti)-RO-ROC PAN0055-PAM351-PAM733-PAM721 Type XX-XXI

7 June 2022, 05:35 AM	#2
SunTzu "TRF" Member Join Date: Jan 2019 Location: NJ Watch: 5513 116234 79280P Posts: 2,144	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. Sent from my iPhone using Tapatalk __________________ The wristwatch is an intimate accessory. The best watches live in harmony and interact with the wearer, and their functions offer a reassuring and emotionally satisfying bond - Kintaro Hattori

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