AS 1204 – interchangeable spare parts

A. Schild (AS) 1204 movement

Which spare parts fit the AS 1204 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

33Parts with interchange data

59Calibers 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
182ISO 20.030	Barrel and cover	AS 1203
195	Barrel arbor	according to original label AS 1203
201ISO 30.015	Center wheel	AS 1203
210ISO 30.025	Third wheel	AS 1203 AS 1205 AS 1206
224ISO 30.027.13	Fourth wheel	AS 1203 AS 1205 AS 1206 Height 440 AS 1203 AS 1205 AS 1206
240ISO 31.080	Cannon-pinion	Height 250 AS 984 AS 1002 AS 1123 AS 1124 AS 1203 AS 1205 AS 1206 Height 265 AS 984 AS 1002 AS 1123 AS 1124 AS 1203 AS 1205 AS 1206 Height 375 AS 984 AS 1002 AS 1123 AS 1124 AS 1203 AS 1205 AS 1206
250ISO 31.046	Hour wheel	AS 1203 AS 1205 AS 1206 Height 148 AS 1203 AS 1205 AS 1206 Height 163 AS 1203 AS 1205 AS 1206 Height 275 AS 1203 AS 1205 AS 1206
260ISO 31.041	Minute wheel	AS 1123 AS 1124 AS 1203 AS 1205 AS 1206
301ISO 40.301	Regulator for flat hairspring	AS 1203 AS 1205 AS 1206
311ISO 70.800	Upper cap jewel with end-piece	AS 984 AS 1002 AS 1114 AS 1123 AS 1124 AS 1187 AS 1187N AS 1194 AS 1194N AS 1203 AS 1205 AS 1206 AS 1475 AS 1506 AS 1507 AS 1558 AS 1568
330ISO 70.801	Lower cap jewel with end-piece	AS 964 AS 970 AS 984 AS 1001 AS 1002 AS 1114 AS 1123 AS 1124 AS 1156 AS 1187 AS 1187N AS 1194 AS 1194N AS 1203 AS 1205 AS 1206 AS 1475 AS 1506 AS 1507 AS 1538 AS 1539 AS 1558 AS 1568 AS 1580 AS 1581 AS 1626 AS 1636 AS 1641 AS 1641N AS 1680 AS 1681 AS 1700 AS 1701 AS 1702 AS 1703 AS 1709 AS 1726 AS 1727 AS 1767 AS 1813
336ISO 70.806	Upper cap-jewel with end-piece, for escape wheel	AS 1130 2e AS 1130N AS 1203 AS 1205 AS 1206 AS 1486 AS 1560 AS 1595 AS 1604 AS 1604N
346ISO 70.807	Lower cap jewel with end-piece, f. esc. wheel	AS 964 AS 970 AS 984 AS 1002 AS 1114 AS 1123 AS 1124 AS 1130 AS 1130N AS 1156 AS 1187 AS 1187N AS 1194 AS 1194N AS 1203 AS 1205 AS 1206 AS 1486 AS 1506 AS 1507 AS 1538 AS 1539 AS 1558 AS 1580 AS 1626 AS 1636 AS 1641 AS 1641N AS 1726 AS 1727 ST 1686
401ISO 51.010	Winding stem	AS 1203 AS 1205 AS 1206
404	Stem for waterproof case, with slot	according to original label AS 1002 AS 1124 AS 1154 AS 1194 AS 1194N AS 1203 AS 1205 AS 1206 AS 1216 AS 1221 AS 1294 AS 1294N
407ISO 31.121	Clutch wheel	AS 984 AS 1002 AS 1114 AS 1123 AS 1124 AS 1187 AS 1187N AS 1194 AS 1194N AS 1203 AS 1205 AS 1206 ST 1686
410ISO 31.120	Winding pinion	AS 1203 AS 1205 AS 1206
415ISO 31.020	Ratchet wheel	AS 1203
420ISO 31.023	Crown wheel	AS 1203 AS 1205 AS 1206
422ISO 81.067	Crown wheel ring	AS 1203 AS 1205 AS 1206 AS 1702 AS 1703 AS 1813
425ISO 51.120	Click	AS 1130 AS 1130N AS 1203 AS 1205 AS 1206 AS 1486
430ISO 61.080	Click spring	AS 984 AS 1002 AS 1114 AS 1123 AS 1124 AS 1200 AS 1201 AS 1203 AS 1205 AS 1206 AS 1475 AS 1506 AS 1507 AS 1558 AS 1568 AS 1930 AS 1931
435ISO 51.050	Yoke	AS 984 AS 1002 AS 1114 AS 1123 AS 1124 AS 1203 AS 1205 AS 1206 AS 1475 AS 1568 AS 1930 AS 1931
440ISO 61.100	Yoke spring	AS 984 AS 1002 AS 1114 AS 1123 AS 1124 AS 1187 AS 1187N AS 1194 AS 1194N AS 1200 AS 1201 AS 1203 AS 1205 AS 1206 ST 1686
443ISO 51.080	Setting lever	AS 1123 AS 1124 AS 1203 AS 1205 AS 1206
445ISO 51.090	Setting lever spring	AS 1203 AS 1205 AS 1206
450ISO 31.100	Setting wheel	AS 1203 AS 1205 AS 1206
702ISO 30.040.12	Escape wheel and pinion, pivoted, for two end-pieces	AS 1203 AS 1205 AS 1206
703ISO 30.040.11	Escape wheel and pinion, for lower end-piece	AS 1203 AS 1205 AS 1206
704ISO 30.040.10	Escape wheel and pinion, for upper end-piece	AS 1203 AS 1205 AS 1206
705ISO 30.040	Escape wheel and pinion	AS 1203 AS 1205 AS 1206
710ISO 40.010	Jewelled pallet fork and stat	AM 390AS 1203 AS 1205 AS 1206 Felsa 390
714	Pallet staff	according to original label AS 1203

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 1204 (height × diameter × thickness × length) and matching mainspring in our shop:

AS 1204: 1.70 × 10.0 × 0.115 × 340 mm (GR 4917)

🔗 Movements sharing the most parts

→ All calibers of A. Schild (AS)

❓ Frequently asked questions

Which AS 1204 spare parts also fit other movements?

For the AS 1204, 33 part numbers are listed as interchangeable. Together they fit 59 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the AS 1204?

The most shared parts: AS 1203 (39 parts), AS 1205 (34 parts), AS 1206 (34 parts).

Which mainspring fits the AS 1204?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.70 × 10.0 × 0.115 × 340 mm (GR 4917, hand-wound, normal end hook).