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Checking the balance

Checking the balance

    To check the balance for truth in the flat mount the balance in truing calipers.  To check flat swing blade over the rim of the balance and while slowly turning the balance observe the line of light between the balance rim and the blade, if […]

Checking the balance 2017-02-17T09:00:47+00:00

Removing the movement from the case

Removing the movement from the case

To remove the movement from the case you will first need to remove the bezel then remove any case screws or clamps.  Then let the movement come out into your hand.  For some watches, particularly pocket watches  the movement comes out the dial side. For watches […]

Removing the movement from the case 2017-02-17T09:00:47+00:00

Removing motion work

Removing motion work

 

    The motion work consists of the hour wheel which caries the hour hand, the cannon pinion which caries the minute hand and works like a clutch that slips on the center shaft and allows the hands to be set.  The minute wheel slips on a shaft that is […]

Removing motion work 2017-02-17T09:00:47+00:00

Removing the hands

Removing the hands

 

    To remove the hands you must first be sure there is no dirt or broken glass on the dial that will cause scratches so brush the dial lightly with a soft dial brush and blow off the loose particles with a blower.  Line up the hands at 12, […]

Removing the hands 2017-02-17T09:01:32+00:00

Removing the dial

Removing the dial

 

    To remove loosen the dial screws located around the perimeter of the movement and carefully pull the dial off the movement. 

    Some movements use sliding levers,  for slide type ( found mostly on ETA movements ) use tweezers or a small screwdriver to slide the […]

Removing the dial 2017-02-17T09:01:38+00:00

Letting mainspring down

Letting mainspring down

 

 

    To let the mainspring down safely you must disengage the click from the crown wheel while holding the crown.  First turn the crown clockwise just until the click releases and becomes free, then use a fine pointed object to hold click free from the crown wheel and let […]

Letting mainspring down 2017-02-17T09:01:43+00:00