Third and last post in the series where I explain how I restored an antique pocket watch. If you have not read the previous two, I invite you to do so:
- Antique pocket watch with repetition of quarters
- Antique pocket watch repair
Below we describe the procedures used in the manufacture of parts, recovery and maintenance of the Pocket Watch with repetition of quarters.
Manufacture of parts
Ratchet spring: A piece was missing was therefore necessary, previously, to make a template on 0.3 mm. brass plate to adjust the shape and size, using this, I framework on a 1 mm. steel sheet obtained from a 3 mm steel rod diameter by forging, polishing proceeded to the carved by Emery and lima, then and then tempering, finally polishing it again giving it a glossy finish according to theeliteswatches.
Steering wheel axis: once drawn the corresponding scheme were taken the measures of the different settings for each element to be incorporated on the, with a steel rod placed in the lathe was his turning to give the required form, once it is tuned to provide the necessary hardness and I will conclude with a glossy finish. Using a potenza of punches I placed it on the steering wheel, then proceeded to the balancing and levelling, the lyre, and finally put the spiral and the dish.
Winding stem: the measures of the different sections I score again on a drawing, I put a rod of steel on the lathe and tournament parts, make the square section I use a splitter plate of four points and a support roller placed on the carriage of the lathe, I do it to lima, to the threaded section use a sweep over the winch bar.
Crown: the first thing was to melt silver and empty it into a rectangular mold, then forging it to give form cylindrical, hence step by giving winch form round head and cylindrical neck, screw this and mark the slotted. Screw this I used a male thread set in counterpoint to did the grooved by hand using the Burin.
Caps the descent: a silver Rod turning, were welded on the sides of the slope.
Minute hand: used part of one style of Luis XV, which was incomplete, missing the CAP and base, did the CAP to the lathe to the extent of the central axis and the base to lima, both of brass, sealing the whole.
The second hand needle: Cap of rod and plate 0.2 mm, all-brass shovel did it. I rode the shovel on the CAP and rivet it on the potenza’s punches.
Crystal bezel: nestled on a lead block on the outside and with a few wedges of steel proceeded to desabollar it from the inside, once the metal regained its primitive form approximate, using a steel burnisher finished receñir metal to recover its original shape and the bas-relief I recorded with a chisel.
Here the first part of the manufacture of parts, recovery and maintenance of the Pocket Watch.
Minute wheel: opened a slot in the rim of the wheel to hold the root of the tooth implant, lima did a brass pin, place it in the slot and I brazing it with hard sealing, the following was give form to the tooth using a file previously lowered to work the interdental space.
Skipjack: stayed it in three claws winch plate and remove any burrs using a Burin.
Box: Caps and bevel adjust them on concave round wooden stakes, the eyelet on the Bell rope load cam adjust it to lima and Burin.
Enamel: Unable to restore it you choose to apply an adhesive amalgam black to disguise its lack in the area of severe dent on the bezel of the Crystal.
Polishing: For steel parts that needed it to use 1200 abrasive paper and then a specification-based oil and Red polishing cream on cardboard.
Royal spring: I placed one commercial similar to which corresponded, based on the height of the keg and the length required to provide a minimum reserve, of autonomy, of 36 hours.
We already reach the second part of the manufacture of parts, recovery and maintenance of the Pocket Watch.
Cleaning: I make it entirely by hand by removing the parts that make up the mechanism, during this note them to verify that they are in good condition and have not caused the clock stop.
The next thing was to reassemble the mechanism, already with all the parts correctly and move to oiling, from there to the cronocomparador to make the adjustment from March, after this two weeks of observation and the subsequent delivery to its owner.
And we finally completed our purpose, which was the manufacture of parts, recovery and maintenance of the Pocket Watch.