AS 1221 – interchangeable spare parts

A. Schild (AS) 1221 movement

Which spare parts fit the AS 1221 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

31Parts with interchange data

33Calibers 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 1220
245	Cannon pinion with clam notch	according to original label AS 1220
301	Regulator for flat hairspring	according to original label AS 1220
404	Stem for waterproof case, with slot	according to original label AS 1002 AS 1124 AS 1154 AS 1194 AS 1194N AS 1203 AS 1204 AS 1205 AS 1206 AS 1216 AS 1294 AS 1294N
407	Clutch wheel	according to original label AS 1220
425	Click	according to original label AS 1220 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 1220
450	Setting wheel	according to original label AS 1220 AS 1351
715		according to original label AS 1220
2535ISO 13.105	Date indicator guard	Venus 203 Venus 204 Venus 222 Venus 223
2556ISO 33.020	Date indicator driving wheel	Venus 203 Venus 204 Venus 222 Venus 223
2557ISO 33.120	Date indicator	Venus 203 Venus 204 Venus 222 Venus 223
2560ISO 33.021	Day star driving wheel	Venus 203 Venus 204 Venus 222 Venus 223
2561/1ISO 91.441	Day indicator, for horizontal rectangular window opening at 3 o'clock	Venus 203 Venus 204 Venus 222 Venus 223
2562/1ISO 91.443	Month star with dial disk	Venus 203 Venus 204 Venus 222 Venus 223
2566ISO 53.200	Date corrector	Venus 203 Venus 204 Venus 222 Venus 223
2567ISO 53.201	Day corrector, mounted	Venus 203 Venus 204 Venus 222 Venus 223
2568ISO 53.202	Month corrector	Venus 203 Venus 204 Venus 222 Venus 223
2571ISO 63.121	Day corrector spring	Venus 203 Venus 204 Venus 222 Venus 223
2572ISO 63.120	Date corrector spring	Venus 203 Venus 204 Venus 222 Venus 223
2573ISO 63.032	Day jumper spring	Venus 203 Venus 204 Venus 222 Venus 223
2576ISO 53.080	Date jumper, mounted	Venus 203 Venus 204 Venus 222 Venus 223
2577ISO 53.081	Day jumper	Venus 203 Venus 204 Venus 222 Venus 223
2578ISO 53.082	Month jumper	Venus 203 Venus 204 Venus 222 Venus 223
2580ISO 63.122	Month corrector spring	Venus 203 Venus 204 Venus 222 Venus 223
2583ISO 63.033	Month jumper spring	Venus 203 Venus 204 Venus 222 Venus 223
2587/1ISO 91.444	Moon phase star, transferred	Venus 203 Venus 222
2588ISO 53.083	Moon phase jumper	Venus 203 Venus 222
2590ISO 53.203	Moon phase corrector	Venus 203 Venus 222
2593ISO 63.123	Moon phase corrector spring	Venus 203
2597ISO 33.023	Moon phase star driving wheel	Venus 203 Venus 222

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 1221 (height × diameter × thickness × length) and matching mainspring in our shop:

AS 1221: 1.80 × 9.0 × 0.095 × 300 mm (GR 5243)

📄 Technical document

View the original document for AS 1221 online:

AS 1220-1221

🔗 Movements sharing the most parts

→ All calibers of A. Schild (AS)

❓ Frequently asked questions

Which AS 1221 spare parts also fit other movements?

For the AS 1221, 31 part numbers are listed as interchangeable. Together they fit 33 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the AS 1221?

The most shared parts: AS 1220 (8 parts), AS 1351 (1 parts), AS 1710 (1 parts).

Which mainspring fits the AS 1221?

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).