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 […]
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) […]
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 […]
Fitting stems and crowns.
The most common problem you will have when fitting stems is that the stem will be cut too short and rendered useless. One good way to fit stems with a minimum […]
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 […]
English fusee pocket watch movement with Verge escapement cross section view
| 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 […] |
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 […]
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
Watch not cleaned and oiled properly.
Hands hitting together, on face, or on crystal.
Hairspring not centered between regulator pins.
Regulator pins […]