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Tianjin Dianzibiao - Accutron 214 Clone

  1. Uscjake87 Jun 5, 2020

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    This is by far, the weirdest watch in my collection and counts as a "unique watch" since very few are known to exist or were made at all. The Accutron was an amazing advancement in technology in the 1960s. A few companies wanted to replicate the 214 tuning fork movement and only one did a true clone which was Slava Transistor. Tianjin must have wanted to piggy back on the success of the tuning fork movement, so they stole most of the design. The movement itself looks like a 214 at first, but it has a side exiting stem versus a back setting stem. This was probably done so they could mass produce the watches using existing Tianjin cases/casebacks on the production line. Reviving this watch has taken over 2.5 years. I sent it to Rob Berkavicious who did an amazing break down of the components of the watch to compare it to a normal 214 accutron. So much kudos to him for his time and efforts. Unfortunately, the coils were dead. I recently sent it to Chris Radek and he rigged up his coil repair machine. At last, it was running and humming again! I suspect there are about 10 of these watches left on the planet, so I feel lucky to have one of the only running ones. This project was documented on another forum I more frequently use, so for more details and to see the comparison of this watch to 214 caliber parts, please check it out here: Watch Talk Forums.

    Some nice macro shots by Rob Berkavicious.
    tianjin front.jpg
    tianjin back.jpg

    A picture of the movement and new stem.
    tianjin9.jpg
    Chris Radek putting it on life support to figure out the electronics (which were all dead and needed replacement).
    tianjin4.jpg

    Freshly rewound coil. Chris Radek does 214/218 coils.
    tianjin6.jpg
     
  2. Uscjake87 Feb 22, 2021

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    Further break down of the movement and comparison to the Accutron 214 gear train and tuning fork.

    tianjin 214 train comparison.jpg tianjin back.jpg tianjin coil back.jpg tianjin coil front.jpg tianjin front.jpg tianjin movement.jpg tianjin movt back 1.jpg tianjin movt back 2.jpg tianjin movt back 3.jpg tianjin movt front 1.jpg
     
    tianjin movt front 2.jpg tianjin movt front 3.jpg tianjin movt front 4.jpg tianjin tf fork comparison.jpg
  3. Borosilikat Feb 22, 2021

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    Very interesting piece ! I have a spaceview 214 myself so this is very cool to see.