



A. Schild (AS) Calibre 530.221 Watch Spare Parts: Overview and Sourcing Guide
The A. Schild (AS) Calibre 530.221 is a trusted Swiss mechanical movement known for its reliable manual winding and precise timekeeping. As part of the broad calibre 530 series, it features robust engineering suited to vintage watches with sweep seconds functionality.
Key Technical Highlights
Calibre: AS 530.221
Movement Type: Mechanical, manual winding
Beat Rate: 21,600 vibrations per hour (3 Hz)
Jewels: 17 synthetic ruby jewels
Functions: Sweep seconds
Size: Approximately 8.75 lignes (about 19.7 mm)
Essential Spare Parts
Mainspring and Barrel: Use genuine or New-Old-Stock (NOS) parts for consistent power and durability.
Balance Wheel and Balance Staff: Critical for reliable time accuracy and shock resistance.
Pallet Fork and Escape Wheel: Wear-prone escapement parts requiring quality replacements for smooth operation.
Gear Train Wheels: Minute, third, and fourth wheels often need replacement; NOS or donor sourced.
Setting Mechanism (Stems, Crowns, Levers, Springs): Precisely fitting parts are essential for smooth winding and time setting.
Jewels: Synthetic ruby bearings reduce wear and friction; replacements must match original specifications.
Split Winding Stem Male: Specific to AS calibre 530 series including 530.221, ensuring proper fit and winding function.
Hands and Dial Components: Authentic parts maintain vintage watch aesthetics and collector value.
Sourcing and Maintenance Advice
Source original, NOS, or donor components made for AS 530.221 for compatibility and reliability.
Handle delicate balance and escapement parts with care during servicing.
Apply synthetic lubricants sparingly and follow standard vintage watch maintenance methods.
Confirm the calibre number engraved on the movement before ordering parts.
Donor movements serve as excellent sources for rare or discontinued spare parts.
Importance of Authentic Spare Parts
Genuine parts maintain the calibre’s accuracy, longevity, and smooth mechanism operation, essential for trusted vintage watch performance.
Authentic restoration preserves historical value and collector appeal.
Well-documented and supported by watchmaker networks for effective repair and sourcing.
Maintaining your A. Schild AS 530.221 calibre with genuine spare parts safeguards its performance and honors its place in Swiss watchmaking history.
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Stem, Crown, Hands & Spares might be available for this movement.
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