How do you synchronize two watches / clocks?

Discussion in 'After Hours Lounge (Off Topic)' started by Bob Movies, Nov 20, 2003.

  1. Bob Movies

    Bob Movies Stunt Coordinator

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    Hi Everyone,

    This is something that I've wondered about for a while, though it doesn't really have anything to do with my daily life.

    If I want to get two clocks or watches in dead sync, how do I do it? I'm thinking of the scene in Back To The Future when Doc Brown has the two digital watches and they're running in dead sync.

    Do you need special watches to do that? Is there a difference between digital and analogue? Is there a special technique when it comes to wall clocks (if I wanted to have three clocks for three seperate time zones, but have the second hands sweeping in sync, would this be possible?)

    I seem to remember something about clocks in public schools being controlled by one "master" clock, but that isn't really practical for the average user. I know that quartz digital watches aren't 100% accurate either, so there would be drift over a length of time...

    Any comments on this would be appreciated!
     
  2. Keith Mickunas

    Keith Mickunas Cinematographer

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    If you have the type where you can set the seconds, it should be fairly trivial to sync two within a fraction of a second by starting them at the same time. Or you can get the clocks that get set by the atomic clocks, those should be nice and accurate all the time, then sync your watch to that.
     
  3. Ted Lee

    Ted Lee Lead Actor

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    c'mon. how many movies have you seen where the soldiers, thieves, etc all go, "three, two, one ... mark!" [​IMG]

    most of the high-tech analog watches allow you to "restart" the second hand. with a digital watch, it's even easier.

    so, they just choose a common moment in time (the "mark"), then hit the button and presto ... all your watches are now synched.
     
  4. Hunter P

    Hunter P Screenwriter

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    Bob,
    So I'm guessing that you are either planning some hostage rescue or a heist. If it's the latter then can I join your gang? Will we have cool yellow jumpsuits? (obscure BR reference--SuperTed would get it[​IMG] )
     
  5. Ted Lee

    Ted Lee Lead Actor

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    [​IMG]

    ca-caw! ca-caw!!!
     
  6. Christ Reynolds

    Christ Reynolds Producer

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    why do you wear that tape on your nose
     
  7. LukeB

    LukeB Cinematographer

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    He's out. And you're out, too. I don't think I'm in, either.
     
  8. Vince Maskeeper

    Vince Maskeeper Lead Actor

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    NO GANG!
     
  9. DavidMich

    DavidMich Stunt Coordinator

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    Quartz watches are some of the most accurate in the world, especially when they're Swiss made. The mechanical watches are prone to more "drift". Sometimes as much as +8 to -8 seconds per week.
    Purists like the mechanical watches for their technical beauty.....but if you want something accurate, it's tough to beat a quality quartz watch.

    The US government atomic clock can be accessed at the following link, if you want to set your timepieces to it.

    www.time.gov

    Hope this helps...
     
  10. Don Black

    Don Black Screenwriter

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    Wait til you get time dilation involved.... That throws the whole BTTF theory for a loop. I've got admit though I was very impressed by the amount of effort put into the physics behind the car that appeared in the DVD trilogy.
     

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