Alex Hamilton’s eleventh lesson emphasizes the importance of a logical reassembly order and systematic “system checks” to identify mechanical faults before a watch is fully assembled. He demonstrates how to verify the free running of the powertrain—looking for “backlash” as a sign of clean pivots—and how to test the keyless works and escapement function during the build. The tutorial advises against immediate regulation, suggesting that a movement should run for 24 to 48 hours to allow lubricants and components to settle before final timing adjustments. This disciplined approach prevents the need for invasive troubleshooting that could disturb fresh lubrication and introduce new errors.
