AS 1728 – interchangeable spare parts

A. Schild (AS) 1728 movement

Which spare parts fit the AS 1728 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

28Parts with interchange data

47Calibers 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.

🛒 Spare parts for AS 1728 in our shop

Winding Pinion for AS 1240, Part 410, also for AS 1193, AS 172810,90 € incl. VAT *View item ›

Winding Pinion Part 410 for AS 1193, AS 1240, AS 172810,90 € incl. VAT *View item ›

Setting Lever Spring for AS 1193, 1156, 1300, 1359, 1727, 1728 – Part 44513,90 € incl. VAT *View item ›

🔧 Interchangeable parts

Part no.	Description	Also fits
182ISO 20.030	Barrel and cover	AS 1193
201ISO 30.015	Center wheel	AS 1193
210ISO 30.025	Third wheel	AS 1193
240ISO 31.080	Cannon-pinion	AS 970 AS 1156 AS 1193 AS 1726 AS 1727 according to original label AS 970 AS 1045 AS 1049A AS 1156 AS 1171 AS 1193 AS 1726 AS 1727 Height 202 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 202according to original label AS 970 AS 1045 AS 1049A AS 1156 AS 1171 AS 1193 AS 1726 AS 1727 Height 220 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 240 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 270 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 295 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 320 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 350 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 370 AS 970 AS 1156 AS 1193 AS 1726 AS 1727
250ISO 31.046	Hour wheel	AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 101 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 119 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 139 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 169 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 194 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 219 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 249 AS 970 AS 1156 AS 1193 AS 1726 AS 1727 Height 269 AS 970 AS 1156 AS 1193 AS 1726 AS 1727
260ISO 31.041	Minute wheel	AS 970 AS 1156 AS 1193 AS 1726 AS 1727
301ISO 40.301	Regulator for flat hairspring	AS 1193
307ISO 40.301	Regulator with adjustable stud holder, for flat hairspring	AS 1193
311ISO 70.800	Upper cap jewel with end-piece	AS 1193 AS 1632 AS 1729
311NX	Upper cap jewel with end-piece	according to original label AS 1138 AS 1165 AS 1393 AS 1632 AS 1729 180-115-30?according to original label AS 1138 AS 1165 AS 1632 AS 1729
330ISO 70.801	Lower cap jewel with end-piece	AS 1193 AS 1200 AS 1201 AS 1240 AS 1632 AS 1637 AS 1637N AS 1729 2nd execution AS 1193 AS 1200 AS 1201 AS 1240 AS 1560 AS 1595 AS 1604 AS 1604N AS 1632 AS 1637 AS 1637N AS 1729
330NX	Lower cap jewel with end-piece	according to original label AS 1180 AS 1193 AS 1200 AS 1240 AS 1287 AS 1298 AS 1302 AS 1320 AS 1361 AS 1632 AS 1729
336ISO 70.806	Upper cap-jewel with end-piece, for escape wheel	AS 970 2e AS 1193 AS 1726
401ISO 51.010	Winding stem	AS 1193
407ISO 31.121	Clutch wheel	AS 1193
410ISO 31.120	Winding pinion	AS 1193 AS 1240
415ISO 31.020	Ratchet wheel	AS 1193
420ISO 31.023	Crown wheel	AS 1193
422ISO 81.067	Crown wheel ring	AS 1193 AS 1491
425ISO 51.120	Click	AS 1156 AS 1193 AS 1240 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 1704 AS 1705 AS 1709 AS 1727 AS 1767 AS 1813
430ISO 61.080	Click spring	AS 1193
435ISO 51.050	Yoke	AS 970 AS 1156 AS 1193 AS 1240 AS 1726 AS 1727
440ISO 61.100	Yoke spring	AS 970 AS 1156 AS 1193 AS 1726 AS 1727
443ISO 51.080	Setting lever	AS 1193
443/5443ISO 51.080.06/.01	Setting lever	AS 1193
445ISO 51.090	Setting lever spring	AS 1156 AS 1193 AS 1727 2nd execution AS 970 AS 1156 AS 1193 AS 1726 AS 1727
450ISO 31.100	Setting wheel	AS 1193
710ISO 40.010	Jewelled pallet fork and stat	AS 1193 Peseux 180

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 1728 (height × diameter × thickness × length) and matching mainspring in our shop:

AS 1728: 1.30 × 7.0 × 0.085 × 240 mm (GR 3211)

🔗 Movements sharing the most parts

→ All calibers of A. Schild (AS)

❓ Frequently asked questions

Which AS 1728 spare parts also fit other movements?

For the AS 1728, 28 part numbers are listed as interchangeable. Together they fit 47 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the AS 1728?

The most shared parts: AS 1193 (47 parts), AS 1156 (26 parts), AS 1727 (26 parts).

Which mainspring fits the AS 1728?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.30 × 7.0 × 0.085 × 240 mm (GR 3211, hand-wound, normal end hook).