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Watch Winder Review and Analysis - Part III

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  • Watch Winder Review and Analysis - Part III

    So from PART II, it’s shown that with more motors, battery life will be shorter. Also I’ve shown you how to calculate the Battery Life.

    Let’s carry on…


    PART III

    TPD Calculations
    There are 4 useable selections (modes) in this unit and I’ll calculate the TPD for each of them.

    -> Mode2 & 3
    Winding Sequence = CW 2min – Stop 6min (repeat whole day)

    So, in 2min the unit delivers 2 x 10rpm = 20 turns

    The unit repeats the winding sequence the whole day (1440min)
    1440/(2+6) = 180 repetitions of the winding sequence

    Thus, 20 turns multiplied by 180 repeats = 3600TPD in CW Direction (mode2) or CCW Direction (mode3)

    -> Mode4
    Winding Sequence = CW 2min – Stop 6min – CCW 2min – Stop 6min (repeat whole day)

    So, in 2min the unit delivers 2 x 10rpm = 20 turns in CW Direction.
    Same as in the CCW Direction

    The unit repeats the winding sequence the whole day (1440min)
    1440/(2+6+2+6) = 90 repetitions of the winding sequence
    Thus, 20 turns multiplied by 90 repeats = 1800TPD in CW Direction and another 1800TPD in the CCW Direction

    -> Mode5
    Winding Sequence = CW 5min – CCW 5min (repeat for 3hrs or 180mins) and rest for 9hrs

    So, in 5min the unit delivers 5 x 10rpm = 50 turns in CW Direction.
    Same as in the CCW Direction

    The unit repeats the winding sequence for 180min, then rest for 9hrs
    180/10 = 18 repetitions of the winding sequence in 12hrs (3hrs rotating + 9hrs stop)
    Thus, 50 turns multiplied by 18 repeats = 900TPD in CW Direction and 900TPD in CCW Direction in 12hrs. So in one whole day, its 1800TPD for the CW & CCW Direction each.

    Bro, I’ll think of a way to lower the TPD. In the meantime just use Mode 4 and an external timer set to 5 hrs only. This will give you about 720TPD for your Rolex watches.


    Actual TPD Count
    To prove my calculations are correct, I’ve modified a pedometer that will count the total number of turns. Photo below shows how I’ve placed the pedometer. I’ve pasted an EVA bumper on the pod. Each time it rotates to a 6 o’clock position, it’ll hit the micro-switch of the modded pedometer and it counts incrementally.



    Set in Mode2



    After about 24hrs, ... read the bare truth here!

    ~0~
    Visit the DIY Section of Singapore Rolex Club for interesting articles.

    Privileged manufacturer for:
    • Panerai Boutiques - Asia-Pacific
    • Montre de MarQue
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    • Glory Time
    • The Watch-Collector
    • Time Palace
    • The Swiss Connection
    • M Baker
    • Maurice Lacroix
    • Time Marques
    • Timeless Watch Boutique


    To Achieve Perfect Aim, just shoot and call anything you hit as TARGET!

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