Thanks Andrew! This was a really fun video to make. I'll try and do some more in the future where I point out identifiers of authentic/counterfeit Seikos.
For many years collectors, experts and other watch aficionados thought that the Seiko 6139-6000 series Silver dial (also known as the Silver Pogue) did not exist. I am sure when people at that time claimed to own one or claimed they saw one, they were not believed or told their watch was a fake. As it turns out, they did exist and as I understand it are even more rare than the actual Pogue 6139-6005 model. Could this be an example of the "Black Swan Fallacy"? Not sure...in any event, never let some self proclaimed expert tell you your watch is a fake. Do your own research. Even real experts make mistakes as well.
Great video! Do you know what the luminescent material is on these 7006s? Recently got the orange variant from my grandfather but I'm worried what material it might have on there.
Great question. I wouldn't worry too much. While there isn't a lot of concrete evidence stating exactly what compounds Seiko was using at the time, it seems that throughout the late 60s, 70s, and into the 80s, they were using mostly doped zinc sulfide mixtures. Doping with copper (and later other rare earth metals) wouldn't pose any radioactive risk to you. I think there are a few vintage Seiko models that have been confirmed as having been doped with tritium, but even then, we're talking 68', 69', and tritium has a half life of only about 13 years. By now, the exposure would be negligible, especially sealed inside of the case. Seiko was one of the first companies to completely abandon radioactive luminous. In the late 80s, they did some experimenting with promethium, which only has a half life of about 3 years, and even then it was only for select diver models. They later developed Luminova, which I believe is a strontium aluminate doped with europium, and some other rare earth metals, and they continue to develop new mixtures based on these compounds even today. Hope this puts your mind at ease. Let us know if you need your grandad's watch serviced at service@hubcityvintage.com!
I’m relieved that the pumpkin one in front of me checks out. What I would like to ask is, what gives the bezel resistance?! I’ve popped it and there’s no click spring or spring loaded ball bearing, which are the only two, on Seiko, I’m familiar with.
Glad to know this video helped you with your pumpkin. The bezel gasket provides the resistance. If memory services it is a .9mm with a 31mm diameter gasket. Feel free to reach out to service@hubcityvintage.com if you need a service.
Thank you for showing every detail of the watch, great video!
My pleasure. Glad you enjoyed it!
Super useful video! I wish more channels would make videos about how to authenticate different vintage watches
Thanks Andrew! This was a really fun video to make. I'll try and do some more in the future where I point out identifiers of authentic/counterfeit Seikos.
For many years collectors, experts and other watch aficionados thought that the Seiko 6139-6000 series Silver dial (also known as the Silver Pogue) did not exist. I am sure when people at that time claimed to own one or claimed they saw one, they were not believed or told their watch was a fake. As it turns out, they did exist and as I understand it are even more rare than the actual Pogue 6139-6005 model. Could this be an example of the "Black Swan Fallacy"? Not sure...in any event, never let some self proclaimed expert tell you your watch is a fake. Do your own research. Even real experts make mistakes as well.
This is a great point. Of the 6139-60XX, the Silver Pogue is certainly one of the rarest. I'm lucky to have had a few come across my bench.
Great video! Do you know what the luminescent material is on these 7006s? Recently got the orange variant from my grandfather but I'm worried what material it might have on there.
Great question. I wouldn't worry too much. While there isn't a lot of concrete evidence stating exactly what compounds Seiko was using at the time, it seems that throughout the late 60s, 70s, and into the 80s, they were using mostly doped zinc sulfide mixtures. Doping with copper (and later other rare earth metals) wouldn't pose any radioactive risk to you. I think there are a few vintage Seiko models that have been confirmed as having been doped with tritium, but even then, we're talking 68', 69', and tritium has a half life of only about 13 years. By now, the exposure would be negligible, especially sealed inside of the case. Seiko was one of the first companies to completely abandon radioactive luminous. In the late 80s, they did some experimenting with promethium, which only has a half life of about 3 years, and even then it was only for select diver models. They later developed Luminova, which I believe is a strontium aluminate doped with europium, and some other rare earth metals, and they continue to develop new mixtures based on these compounds even today. Hope this puts your mind at ease. Let us know if you need your grandad's watch serviced at service@hubcityvintage.com!
*photo credit Catawiki* best place to look for Feiko parts 😂
I’m relieved that the pumpkin one in front of me checks out. What I would like to ask is, what gives the bezel resistance?! I’ve popped it and there’s no click spring or spring loaded ball bearing, which are the only two, on Seiko, I’m familiar with.
Glad to know this video helped you with your pumpkin. The bezel gasket provides the resistance. If memory services it is a .9mm with a 31mm diameter gasket. Feel free to reach out to service@hubcityvintage.com if you need a service.
@@hubcityvintage Perfect!!! This was my next question so I really appreciate it lol 🙏🏻
Just awesome
Thanks so much!