AS 1220 – interchangeable spare parts

A. Schild (AS) 1220 movement

Which spare parts fit the AS 1220 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

8Parts with interchange data

17Calibers sharing parts

Note: We have compiled this overview to the best of our knowledge and belief, based on the original interchangeability lists of A. Schild (AS) and the original spare-part labels. All information has been carefully checked but is provided without guarantee. Please verify the interchangeability yourself before fitting, especially the height, diameter and execution of the part.

🔧 Interchangeable parts

Part no.	Description	Also fits
203	Intermediate wheel and pinion	according to original label AS 1221
245	Cannon pinion with clam notch	according to original label AS 1221
301	Regulator for flat hairspring	according to original label AS 1221
407	Clutch wheel	according to original label AS 1221
425	Click	according to original label AS 1221 AS 1710 AS 1711 AS 1714 AS 1715 AS 1746 AS 1747 AS 1814 AS 1860 AS 1861 AS 1871 AS 1880 AS 1881 AS 1900 AS 1901 AS 1904
445	Setting lever spring	according to original label AS 1221
450	Setting wheel	according to original label AS 1221 AS 1351
715		according to original label AS 1221

Source: original interchangeability lists of A. Schild (AS) (checked transcription) and checked original spare-part labels · as of 2026-10-28. Height / execution: the part fits only in this height or execution.

🌀 Matching mainspring

Mainspring dimensions for AS 1220 (height × diameter × thickness × length) and matching mainspring in our shop:

AS 1220: 1.80 × 9.0 × 0.095 × 300 mm (GR 5243)

📄 Technical document

View the original document for AS 1220 online:

AS 1220-1221

🔗 Movements sharing the most parts

→ All calibers of A. Schild (AS)

❓ Frequently asked questions

Which AS 1220 spare parts also fit other movements?

For the AS 1220, 8 part numbers are listed as interchangeable. Together they fit 17 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the AS 1220?

The most shared parts: AS 1221 (8 parts), AS 1351 (1 parts), AS 1710 (1 parts).

Which mainspring fits the AS 1220?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.80 × 9.0 × 0.095 × 300 mm (GR 5243, hand-wound, normal end hook).