Anyone bought a 6105-8110 crystal from Thailand? - Seiko & Citizen Watch Forum Japanese Watch Reviews, Discussion & Trading
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Old 01-10-2017, 12:14 AM   #1 (permalink)
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Default Anyone bought a 6105-8110 crystal from Thailand?

Been putting it off, but I think it's time for a new crystal on my 6105-8110. The present crystal has a distinctly cloudy look and spoils what is an otherwise near perfect dial. I have checked with Seiko head office in Bangkok and they say they don't have a crystal to fit, so I'm left with something after market, and wondered about these crystals from vintageseiko4ever as I'm already in Thailand. http://www.ebay.com/itm/NEW-GLASS-CR...AAAOSwYIhWkqLD
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Old 01-10-2017, 01:31 AM   #2 (permalink)
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I would ask them for a profile picture and height. I bought a cheap 320W10GN a while ago to try and it was fairly low and flat topped, which distorted the dial and really didn't look good. I ended up putting it on a 6119 6023 I had and it looked just fine on that watch.


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Old 01-10-2017, 02:11 AM   #3 (permalink)
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I bought one, and put it in this:


I'm happy with them.

Two more came in the mail yesterday from him. I'll measure them for you.
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Old 01-10-2017, 02:22 AM   #4 (permalink)
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I bought an original Nos crystal from ebay. Think you need to keep this beauty original .

http://www.ebay.com/itm/Seiko-6105-8...QAAOSwWF5XLcuv

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Old 01-10-2017, 02:59 AM   #5 (permalink)
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What's the thoughts on going with a sapphire from yobokies?
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Old 01-10-2017, 05:10 AM   #6 (permalink)
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Quote:
Originally Posted by dennis thai View Post
What's the thoughts on going with a sapphire from yobokies?

What's the price? I bought a sapphire from crystaltimes.net, fast communication and fast shipment. Would definitely buy again.
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Old 01-10-2017, 05:14 AM   #7 (permalink)
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Originally Posted by handavinci View Post
What's the price? I bought a sapphire from crystaltimes.net, fast communication and fast shipment. Would definitely buy again.
Haven't priced one recently, but they used to be around $45.
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Old 01-10-2017, 06:50 AM   #8 (permalink)
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If I was going to use a sapphire I would buy from Crystaltimes and if not I would buy from Tom which is the same as what Jonathan/east tech used to supply, pretty perfect imo.
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Old 01-10-2017, 07:06 AM   #9 (permalink)
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Quote:
Originally Posted by TheTigerUK View Post
If I was going to use a sapphire I would buy from Crystaltimes and if not I would buy from Tom which is the same as what Jonathan/east tech used to supply, pretty perfect imo.
Thanks. Would you suggest buying a new crystal retaining ring and bezel gasket as well? I'll probably get Seiko in BKK to do the job and I have no idea as to the condition of those parts, and I know Seiko won't stock them.

Last edited by dennis thai; 01-10-2017 at 07:13 AM.
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Old 01-10-2017, 07:31 AM   #10 (permalink)
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Quote:
Originally Posted by dennis thai View Post
Thanks. Would you suggest buying a new crystal retaining ring and bezel gasket as well? I'll probably get Seiko in BKK to do the job and I have no idea as to the condition of those parts, and I know Seiko won't stock them.
Why the bezel is off I would definitely change the gasket, you may struggle to find a OEM crystal retaining ring but if yours isent corroded then it should be fine, a new OEM crystal gasket would perhaps be a good idea as well why your at it and a case back gasket as well, a mini service
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Old 01-10-2017, 08:20 AM   #11 (permalink)
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Originally Posted by TheTigerUK View Post
Why the bezel is off I would definitely change the gasket, you may struggle to find a OEM crystal retaining ring but if yours isent corroded then it should be fine, a new OEM crystal gasket would perhaps be a good idea as well why your at it and a case back gasket as well, a mini service
Even though the watch is all original AFAIK, does it really matter if things like the crystal retaining ring and gaskets are aftermarket? I'd like to have the spare crystal retaining ring (aftermarket) on hand just in case the original is corroded, because Seiko in BKK certainly won't have a spare.
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Old 01-10-2017, 08:47 AM   #12 (permalink)
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Quote:
Originally Posted by dennis thai View Post
Even though the watch is all original AFAIK, does it really matter if things like the crystal retaining ring and gaskets are aftermarket? I'd like to have the spare crystal retaining ring (aftermarket) on hand just in case the original is corroded, because Seiko in BKK certainly won't have a spare.
IMO they are a bit of a lottery and can be crap, personally I would go for OEM without exception.
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Old 01-10-2017, 09:11 AM   #13 (permalink)
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Quote:
Originally Posted by TheTigerUK View Post
IMO they are a bit of a lottery and can be crap, personally I would go for OEM without exception.
OEM rubber gaskets are going to be 40 years old, how good would they be? Who stocks OEM Seiko 6105-8110 parts? I only see aftermarket on Ebay. The crystal is going to be aftermarket as well.
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Old 01-10-2017, 09:17 AM   #14 (permalink)
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Quote:
Originally Posted by dennis thai View Post
Even though the watch is all original AFAIK, does it really matter if things like the crystal retaining ring and gaskets are aftermarket? I'd like to have the spare crystal retaining ring (aftermarket) on hand just in case the original is corroded, because Seiko in BKK certainly won't have a spare.
Before you get to the Seiko BKK part, you may wish to check they are still willing to perform jobs on vintage watches.

Recently i sent them a mint 6309/7040 requesting a new bezel gasket to be fitted. My contact was informed to tell the repair man to tape the case prior to removing the bezel. When i received the watch back there was a small mark on the case and i sent them a picture and asked why they did not follow my instructions.

The reply that followed was the repair man was very sorry for marking the case. They also told me that after my issue they had a meeting and it was decided that no more repair work would be carried out on vintage or collectors watches.
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Old 01-10-2017, 10:57 AM   #15 (permalink)
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Quote:
Originally Posted by Moonriver View Post
Before you get to the Seiko BKK part, you may wish to check they are still willing to perform jobs on vintage watches.

Recently i sent them a mint 6309/7040 requesting a new bezel gasket to be fitted. My contact was informed to tell the repair man to tape the case prior to removing the bezel. When i received the watch back there was a small mark on the case and i sent them a picture and asked why they did not follow my instructions.

The reply that followed was the repair man was very sorry for marking the case. They also told me that after my issue they had a meeting and it was decided that no more repair work would be carried out on vintage or collectors watches.
The last time I was at their service centre was about 5 years ago and they did some work on a couple of old Seikos I had, but I know they don't carry any parts for vintage Seikos. Perhaps I'll give them a ring before I go to check if they'll do the work I want. Problem is, I don't know any watchmaker in Pattaya (where I am) that I trust to work on my 6105.
BTW, you wouldn't be too happy with the repair guy marking any watch you had in for repair, vintage or not, so hardly an excuse for them to stop repairing vintage Seikos.

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Old 01-10-2017, 06:08 PM   #16 (permalink)
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I just measured it.



2.90mm
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Old 01-10-2017, 08:06 PM   #17 (permalink)
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Quote:
Originally Posted by Jammerman View Post
I just measured it.



2.90mm
Is that around what the OEM crystal would be?
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Old 01-10-2017, 08:12 PM   #18 (permalink)
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Well Alex at Crystal Times and Tom i would highly recommend for sure...Tiger is correct why not change the gaskets while u are doing the work...well worth the time to do it right...God Bless,John
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Old 01-10-2017, 08:15 PM   #19 (permalink)
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Originally Posted by jringo8769 View Post
Well Alex at Crystal Times and Tom i would highly recommend for sure...Tiger is correct why not change the gaskets while u are doing the work...well worth the time to do it right...God Bless,John
Tiger suggested only using OEM gaskets and crystal retaining ring but where do I find them? Plenty of aftermarkets on Ebay.
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Old 01-10-2017, 09:05 PM   #20 (permalink)
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Crystal Times is good but i'd more highly recommend the crystals Spencer Klein makes. Have a few of them in my watches and they are amazing.
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Old 01-10-2017, 11:02 PM   #21 (permalink)
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When viewed from straight on the crystal doesn't look too bad.
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Old 01-11-2017, 12:16 AM   #22 (permalink)
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This may be THE definitive post on 320W10GN crystals.


Quote:
Originally Posted by SeikoPsycho2 View Post
It seems for us OCD minded folks there is a lot of discussion concerning crystal specs especially when it comes to the 6105 divers. I have pondered this question myself many times and finally, when time allowed, sat down and measured 20 nos Seiko 320W10GN crystals with a high quality digital micrometer. Here are my findings:

Crystal Height:

Type 1: Single dome, flat top measures 3.81mm to 3.89mm

Type 2: Double dome measures 3.76mm to 3.85mm

Type 3: Double dome measures 3.57mm to 3.70mm

Type 4: Double dome measures 3.48mm to 3.52mm

An original type 3 measures roughly 3.65mm in height give or take a few mm's. This is from the top center of the dome to the outer base of the crystal where it meets the gasket. Jonathan's type 3 also measures roughly 3.65mm in height.

Here's where a difference comes into play between Jonathan's (SK's) type 3 and the original 320W10GN type 3:
The height of the crystal at the edge where it meets the bezel on an original type 3 is roughly 3.55mm causing it to sit approximately 1mm above the edge of the bezel. On Jonathan's it's 2.85mm. So, although the overall height on Jonathan's (or SK's) is correct, the height at the edge where it meets the bezel is incorrect causing it to sit lower then the original in reference to the edge of the bezel.


Seiko's Type 2 edge height is roughly 3.60mm causing it to sit approximately 1.5mm above the edge of the bezel. As you can see from the measurements above the type 2 crystal is very close to the type 1 in height. The main difference is the type 2 is a double domed crystal rather then a flat top crystal.

Regarding numbers and popularity, out of twenty nos Seiko crystals I found the following:

3 Type 1: Single dome, flat top measures 3.81mm to 3.89mm

4 Type 2: Double dome measures 3.76mm to 3.85mm

10 Type 3: Double dome measures 3.57mm to 3.70mm

3 Type 4: Double dome measures 3.48mm to 3.52mm

Based on these findings they collaborate what Jonathan believed and shared on March 9th 2014 shortly before his Passing. That the most popular 320W10GN crystal is the type 3.

Here is what Jonathan shared:
" I did a lot of research on the 320W10GN00, which has four variants over its run of nearly fifteen years. The second and fourth variants are insignificant as they were not made any any appreciable numbers.

What I now call "Type I": The oldest (correct for pre-1972 models) has a flat top and inside dome. It measures 3.85mm high with frosted sidewall and polished bevel. The crisp edge of this crystal is a chip magnet. In the early '70s I remember seeing fairly new watches coming in for new crystals, within weeks in some instances, due to chips and nicks on the top edge. My assumption is Seiko got tired of these complaints and dropped the height by 0.20mm. This doesn't sound like much but it's enough to get that edge closer to the bezel of a sport watch or the rotating ring of a dive watch. Also, flat-top crystals are terribly reflective. Double domes are far less so which is why this makes sense for a dive watch. Also, the double dome is much more structurally sound than flat/flat or flat/domed.

What I refer to as "Type III": Third is double domed but is only 3.63mm +/- 0.02mm high with frosted edge and polished bevel. This is the most common variant and after 1972 became correct for both OEM and service replacement applications. Thus, if your 1970 watch has the "Type III" crystal, it was replaced as part of a service after 1972 and IS STILL CONSIDERED CORRECT."

www.thewatchsite.com/21-japanese-watch-discussion-forum/88250-6105-crystal.html

So, although there are differing opinions about which original crystal was the most popular I'd tend to side with Jonathan's original thoughts: The type 3 was the most widely used original crystal.

Unless it's a very early 6105, it's nos Seiko type 3 for me........







In the absence of an original, I'd have to say Jonathan's (SK's) reproduction comes closest to the original and would be my next choice. as inquiring minds would like to know, I'd be curious to know how SK's type 2 measures up...........
"SK" refers to the 320W10GN crystals from Thailand, like the one in my previous post.
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Old 01-11-2017, 07:48 AM   #23 (permalink)
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Actually, "SK" refers to Spencer Klien's.
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Old 01-11-2017, 11:20 AM   #24 (permalink)
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Yes, Tom's post on 6105 crystals is the best, always a pleasure to read again.
+1 on the type III crystal, it allows a better (larger) view of dial with less distortion of the edges. But, I see why type 1 with it's outer profile is preferred by a lot of people.
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Old 01-11-2017, 11:37 AM   #25 (permalink)
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Quote:
Originally Posted by dennis thai View Post
Been putting it off, but I think it's time for a new crystal on my 6105-8110. The present crystal has a distinctly cloudy look and spoils what is an otherwise near perfect dial.
No crystal swap is needed, you can easily polish the original to a virtually new state using the correct abrasive which is diamond paste grade 4, 3.5 or 2.5 on a felt wheel and rotary tool. Optionally finish with cerium oxide. That can be done without removing the crystal, the products can be cheaply bought on Aliexpress, even from Thailand, which is where I'm also at the moment.
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