Job Description and Jobs
- 1) Assembles, tests, and adjusts mainspring barrel assembly, using watchmaker's tools, handpress, and loupe: Attaches inner coil of mainspring to arbor of hand-operated mainspring winder, and winds spring within body of winder.
- 2) Inserts wound spring into mainspring barrel, utilizing plunger inside winder.
- 3) Presses barrel arbor into position and turns arbor until hook in arbor engages hole in center of coiled spring, using tweezers.
- 4) Places drop of oil on spring, using hypodermic syringe.
- 5) Presses barrel cover into place, using handpress.
- 6) Moves arbor up and down to test endshake, using tweezers and loupe.
- 7) Corrects insufficient or excessive endshake.
- 8) May press rounded punch against barrel hub to correct side-shake.
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Job Number: 8905