Lesson 1Automatic winding parts inspection: rotor bushings, reverser wheels, winding pawls, and reduction gear tooth checksCheck auto winding for wear and play in rotors, reversers, reduction gears, ensure good bidirectional winding, no noise, drag, or early failure after putting back.
Rotor endshake and sideplay evaluationRotor axle, bearing, or bushing wearReverser wheel function and backlashPawl and click engagement surfacesReduction gear tooth and profile checksLesson 2Gasket and case component handling: removal, inspection, measurement for replacement, and preserving embedded diamonds/stone settingsLearn right removal, check, measure gaskets and case parts while safe diamonds and stones, ensure water resistance, strength, and keep delicate settings in full service.
Case opening without stressing settingsGasket extraction and contamination controlDimensional checks and hardness assessmentIdentifying deformed or cut gasket profilesProtecting bezels with diamonds or stonesLesson 3Protecting case and jewelry finishes during service: non-abrasive clamps, protective films, padded holders for stones and white gold surfacesUse ways to shield cases and jewelry finishes in service, non-abrasive clamps, films, padded holders wey stop marring polished, brushed, stone-set, or rhodium surfaces.
Case holders with soft, shaped jawsProtective films on lugs and bezelsSecuring bracelets with stone settingsHandling white gold and rhodium platingFinal wipe-down and inspection for marksLesson 4Record-keeping of replaced parts, sourced original vs. OEM equivalents, and documenting any necessary jeweler referrals for stone tightening or gold repairKeep tight records of replaced parts, original vs OEM, and note jeweler needs for stone tightening, prong fix, or case metal restore to keep traceability.
Service envelopes and job numberingListing original versus OEM componentsRecording serials, calibers, and datesDocumenting stone or case risk notesReferral forms for external jewelersLesson 5Step-by-step movement disassembly sequence for chronometer movements: removing rotor, bridges, gear train, escapement, balance, barrel, and keyless worksFollow precise disassembly order for chronometer movements, cut risk to pivots, jewels, escapement, keep orientation for good reassembly and timing.
Pre-disassembly checks and power let-downRotor and automatic module removalBridge and gear train extraction orderEscapement and balance safe handlingBarrel, keyless, and motion works removalLesson 6Cleaning strategy: ultrasonic cleaning cycles for non-lubricated parts, solvent choices for jewels and gold components, and drying protocolsPlan cleaning wit ultrasonic and right solutions for steel, brass, jewels, gold, control rinse and dry to avoid residue, spots, or damage to finishes.
Pre-cleaning degreasing and sortingBasket loading and part segregationUltrasonic cycle time and temperatureSolvent selection for jewels and goldDrying methods and contamination checksLesson 7Inspection procedures under loupe and microscope: checking jewel bearing integrity, pivot wear, bushings, and plating corrosionDo structured checks under loupe and scope for jewel bearings, pivots, bushings, plating, spot wear, cracks, corrosion, old repairs wey hit reliability and amplitude.
Loupe magnification selection and useMicroscope setup and contrast controlJewel seating, chips, and cracksPivot polish, straightness, and shouldersBushing ovality and plating lossLesson 8Controlled environment preparation: bench setup, anti-static mats, soft padding, stone-safe trays, and parts organization (numbered trays)Set clean, no-dirt bench for jeweled watches, anti-static, soft protection, stone-safe trays, label parts systematic to stop mix-ups or damage.
Lighting, magnification, and bench ergonomicsAnti-static mats and grounded tool placementSoft pads and dust-free surface managementStone-safe trays and lined parts containersNumbered trays and labeling conventionsLesson 9Barrel and mainspring evaluation: mainspring testing for set, measurements for replacement spec, and barrel wall/jewel condition checksBuild systematic check for barrel and mainspring health, test set, visual defects, measure, inspect walls, arbors, jewels for wear or scores.
Safe barrel opening and mainspring removalVisual inspection for set and surface cracksMeasuring length, width, and thicknessChecking barrel wall, floor, and arbor fitJewel and bushing wear around barrelLesson 10Safe removal of hands and dial with protecting the dial and applied markers, securing dial feet and preserving finishingMaster safe hand and dial removal, protect fragile finishes, markers, feet, use levers, guards, supports to avoid bend, scratch, flake.
Hand levers, protectors, and supportsCentering and lifting sequence for handsDial protector placement and selectionDial foot screw and clamp handlingStoring dials to avoid finish damage
