Shinkansen (Bullet Train) Seiko Pocket Watch

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Having travelled on the Shinkansen when I was in Japan late last year, I marvelled at how smooth and efficient it was. I came across this excellent documentary on it and was surprised that the drivers still use pocket watches, albeit quartz ones.

The video clearly shows a Seiko Pocket watch at 7min 22sec:


They synchronised it with a master clock at HQ at the start of their shift:


The watch is then taken aboard and mounted in a special holder on the train's dashboard (11min 43sec):


Close up of the watch (18min 42sec):


Just wondering if any members here own one of these watches and can provide the reference number? Was it difficult to find? If it's a "service issued" piece, does it have any special stamps or engraving on the case back? Thanks in advance for your responses.

Another pocket watch featured in the documentary at 22min 43sec was this "Estonia". Don't know anything about it so would love to hear from those that do.


Edit: Unable to embed video into my post. Click on link to watch in YouTube.
 
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Every pocket watch collector should have a Japan Railways pocket watch.
Quartz as discussed as above, not sure it was used on the Shinkansen, I'll have to check my records.

Edited:
 
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Every pocket watch collector should have a Japan Railways pocket watch.
But be careful, it could be contagious 😉.

 
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Please look at this.
https://www.tokeibegin.jp/feature/18510/
https://www.seikowatches.com/jp-ja/products/train-wathch/svbr003

The scene where “Estonia” appears is a reenactment of the past, so it is unclear whether “Estonia” was actually used.
Please also take a look at this PDF.
https://www.jstage.jst.go.jp/article/micromechatronics/54/203/54_KJ00006812668/_pdf/
In this PDF, it states that in 1897 (Meiji 30), the Railway Bureau - that is, the government-operated railway (later the Japanese National Railways) - purchased pocket watches from the American Waltham Watch Company and designated them as the standard.
 
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Every pocket watch collector should have a Japan Railways pocket watch.|
Quartz as discussed as above, not sure it was used on the Shinkansen, I'll have to check my records.

Nice one. Thanks for that. I ran the image past Google translate and here's what it came up with:

Looks like it's a commemorative piece. Did you get this as a souvenir on a trip to Japan?
 
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Please look at this.
https://www.tokeibegin.jp/feature/18510/
https://www.seikowatches.com/jp-ja/products/train-wathch/svbr003

The scene where “Estonia” appears is a reenactment of the past, so it is unclear whether “Estonia” was actually used.
Please also take a look at this PDF.
https://www.jstage.jst.go.jp/article/micromechatronics/54/203/54_KJ00006812668/_pdf/
In this PDF, it states that in 1897 (Meiji 30), the Railway Bureau - that is, the government-operated railway (later the Japanese National Railways) - purchased pocket watches from the American Waltham Watch Company and designated them as the standard.
Thank you so much for that info. Really interesting.
For the benefit of forum members I've taken some screen shots from the Seiko web page, translated into English:

It's interesting to note that the spec sheet shows an accuracy of +/- 15 seconds per month, which makes it similar to a G-Shock square like my G-5600UE. My initial thought was that JR would surely demand a higher degree of timekeeping precision given the lives at stake on each train but if the driver synchronises his/her watch each day before starting the shift, then such high precision is not really needed.
 
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The Tokaido Shinkansen operated by JR Central uses an advanced train control system called COMTRAC. If the drivers and the central control room share the same time, it seems that the railway pocket watches are used only for checking the time, so, as shown in a YouTube video, adjusting them once a day might be enough.

This is JR Central’s website, and pocket watches that were actually used on the Tokaido Shinkansen were once sold here. The case backs are engraved.
https://e-mono.jr-central.co.jp/sho..._Swfz0_5PWnoZ0KGXThsR7WQ5PbLQAt7hlFG8vXhDbPqW
The case back is engraved with:
JR東海
幹鉄 平12
019

JR東海 : JR Central(Central Japan Railway Company)
幹鉄 : Kan-Tetsu(Abbreviation of Shinkansen Division / Main Railway Department)
平12:Year 2000 (Heisei era, 12th year)
019 : Number

The case back is engraved with: JR Central Kan-Tetsu Heisei 12 019.
Edited:
 
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Looks like it's a commemorative piece. Did you get this as a souvenir on a trip to Japan?
No, it's a commemorative issue, I think it may have come via Nick Hacko.
 
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These pocket watches are commonly found at auctions in Japan. but they're mostly older models.
But older ones are more attractive.

The old markings looked like this.
It was in service at Kansai national railway in showa42(1967)

 
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fun fact, if you buy a watch from the Wako department store(Seiko owns Wako) in Ginza they will set the time on your watch to one of these.
 
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Don't many of these mechanical ones, from say the 70s or 80s, have tiny 4/0 size mov'ts?
 
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Don't many of these mechanical ones, from say the 70s or 80s, have tiny 4/0 size mov'ts?
I don't know how big a 4/0 size is, but they did use wrist watch calibers like the 6110A (1971) and others before they went to quartz.
The 6110A was based on the 61 series movements, 27mm diameter.

 
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I don't know how big a 4/0 size is, but they did use wrist watch calibers like the 6110A (1971) and others before they went to quartz.
The 6110A was based on the 61 series movements, 27mm diameter.

4/0 is a touch over an 1" so, probably pretty close to 27mm.
 
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Hello Kitty 50th Anniversary Shinkansen watch too!!
Haha. I was aboard the Hello Kitty Shinkansen when I went to visit Himeji castle! As you can see the interior of the train was also completely themed in Hello Kitty, even the toilet! I've got a video of the train as well but sadly it's too big to upload.