Watch Repair

Fitting odd shaped crystals

Fitting odd shaped crystals

 

First, remove movement, band, and anything else such as a rotating divers bezel from case.

Fitting an odd shaped crystal. (1) Remove old crystal from bezel. (2) Remove all old glue […]

Fitting odd shaped crystals2019-09-14T12:42:10-04:00

Polishing plastic watch crystals

Polishing plastic watch crystals

 

Scratches can be removed by buffing the crystal using a muslin buffing wheel and plastic polishing compound.

If scratches are deep, sand the crystal with 400 grit sandpaper before buffing.

With the muslin wheel mounted on your polishing motor, lightly touch […]

Polishing plastic watch crystals2019-09-14T12:42:10-04:00

Fitting round plastic crystals

Fitting round plastic crystals

First, remove movement, band, and anything else such as a rotating divers bezel from case.

(1) Remove old crystal from bezel. (2) Remove all old glue and dirt from bezel shoulder. (3) […]

Fitting round plastic crystals2019-09-14T12:42:10-04:00

Round Glass Crystal fitting

Crystal fitting

First, remove movement, band, and anything else such as a rotating divers bezel from case.

Fitting round mineral glass crystals: (1) Determine thickness by measuring original or the distance from the bottom of the […]

Round Glass Crystal fitting2019-09-14T12:42:11-04:00

Removing the stem

Removing the stem

 

To remove the stem you must first loosen the set lever screw, then you can pull the stem out.

    You only need to turn the set lever screw a couple turns to release the stem.  Some movements use a button instead and in that case you would […]

Removing the stem2019-09-14T12:42:11-04:00

To remove the balance wheel

Balance
 

    The balance is the heart of the watch, together with the hairspring it is the component that makes the movement keep time.

    To remove the balance you must first remove the balance cock, to do so first remove the screw then […]

To remove the balance wheel2019-09-14T12:42:11-04:00

Movement interchangeability list

CALIBER: ETA 9154

LIGNE SIZE: 12 1/2

M/M SIZE: 28.00

THICKNESS: 5.40 MM

DIAL FEET: 12 3/4 & 7 1/2

HANDS: 150/90/22

CELL: 343

STEM: 401-709

TAP: 10

FEATURES: SWEEP, DATE, ELECTRONIC

REPLACES: TISSOT 431

CALIBER: ETA 9158

LIGNE SIZE: 12 […]

Movement interchangeability list2019-09-14T12:42:11-04:00

Checking wheel and pinion depthing

Checking wheel and pinion depthing

 

 

An animated view of a wheel and pinion with correct depthing

 

Wheel mounted in the depthing tool to check wheel and pinion depthing and truth

 

 

 

 

Checking wheel and pinion depthing2019-09-14T12:42:12-04:00
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