Marine: Bulova Accutron Marine Navigator Mark II Analog Ships 24-hour Chronometer

Discussion in 'Chronometers' started by Accutronitis, Feb 4, 2016.

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  1. Accutronitis

    Accutronitis Registered User

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    #1 Accutronitis, Feb 4, 2016
    Last edited by a moderator: Dec 15, 2017
    Bulova Marine Navigator Mark II, It employs three interconnected Accutron 214H Chronometric micro-power plants and are offset by 120 degrees from each other as the time-keeping standard for this marine chronometer. The electronic circuits of the three units are interconnected so that the resulting rate is an average of the rates of the three fork frequencies.
    it has a large battery housing that screws into the case back in place of the battery hatch cover and beside it is a large knurled settings handle that when pulled outwards activates the hacking mechanism and when turns sets the time of day.
    The movements are housed in a large solid brass housing and are accessed by unscrewing the upper portion of the housing from the lower protion base housing, the case is sealed against moisture and sudden changes in barometric pressure by means of a large o-ring, To protect the chronometer from shock it is mounted in a wooden box with a rubber floor that has a disk shaped brass coupling interface that has a snap ring that locks the lower housing base to the rubber floor, once it's locked inside the box it also has a inner clear plexiglass lid that further protects the glass face of the chronometer.

    When this Chronometer was being developed in the Bulova Timer Labs it was call "Model TE-18 Navigational Timepiece Experimental Model" A bit of a mouth full........


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  2. Tom McIntyre

    Tom McIntyre Technical Admin
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    I have never seen one of these. It looks very nice. How long were they made?
     
  3. Accutronitis

    Accutronitis Registered User

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    #3 Accutronitis, Feb 4, 2016
    Last edited by a moderator: Dec 15, 2017
    The mark 2 was only made for a few year and here is something you won't read anywhere's else Bulova made 2 different Index Wheels for the Accutron movement, A very rare few are made out of Paliney 7, Paliney 7 is a Palladium, silver age-hardenable alloy that in addition contains 10% gold and 10% platinum and that's why it looks silver compared to a standard indexwheel, These index wheels were made by the Bulova Timer Labs for use in timers and clocks that were used in the NASA Space Programs And all the timers and clocks that went to the moon, Bulova Timer Labs also used them in the Bulova Accutron 214 based Marine Navigators......

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  4. Accutronitis

    Accutronitis Registered User

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    #4 Accutronitis, Feb 4, 2016
    Last edited by a moderator: Dec 15, 2017
    Here they are being made at the Bulova Timer Labs With a stated deviation rate of far less that a second a day, And after testing mine i believe them.....

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