AS 665 – interchangeable spare parts

A. Schild (AS) 665 movement

Which spare parts fit the AS 665 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

1Parts with interchange data

4Calibers 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
445	Setting lever spring	according to original label AS 340 AS 341 AS 806 AS 1004

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

AS 665: 1.45 × 9.0 × 0.105 × 280 mm (GR 3966)

🔗 Movements sharing the most parts

→ All calibers of A. Schild (AS)

❓ Frequently asked questions

Which AS 665 spare parts also fit other movements?

For the AS 665, 1 part numbers are listed as interchangeable. Together they fit 4 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the AS 665?

The most shared parts: AS 340 (1 parts), AS 341 (1 parts), AS 806 (1 parts).

Which mainspring fits the AS 665?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.45 × 9.0 × 0.105 × 280 mm (GR 3966, hand-wound, normal end hook).