Otero 41 – interchangeable spare parts

Otero 41 movement

Which spare parts fit the Otero 41 movement? For every part you can see which other calibers use the same part according to the original Otero spare-part labels. We do not have an original interchangeability list from the manufacturer.

23Parts with interchange data
41Calibers sharing parts
Note: We have compiled this overview to the best of our knowledge and belief, based on the original Otero spare-part labels; we do not have an original interchangeability list from the manufacturer. 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 Otero 41 in our shop

More items for Otero 41 in our shop →

🔧 Interchangeable parts

Part no.DescriptionAlso fits
180barrel with arbor
195/5415Barrel arbor
206center wheel
227Sweep second wheel
260Minute wheel
301Regulator for flat hairspring
407clutch wheel
410Winding pinion
415ratchet
420crown wheel
422Crown wheel ring
425click
430Click spring
435clutch lever
440Yoke spring
443+5443Setting lever with screw
445Art.Nr. 445“
462Minute work cock
702escape wheel
705escape wheel
710Jewelled pallet fork and stat
721Balance with flat hairspring, regulated
721/1balance

Source: checked original Otero spare-part labels · as of 2026-10-17. Height / execution: the part fits only in this height or execution.

🌀 Matching mainspring

Mainspring dimensions for Otero 41 (height × diameter × thickness × length) and matching mainspring in our shop:

🔗 Movements sharing the most parts

→ All calibers of Otero

❓ Frequently asked questions

Which Otero 41 spare parts also fit other movements?

For the Otero 41, 23 part numbers are listed as interchangeable. Together they fit 41 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the Otero 41?

The most shared parts: Otero 40 (24 parts), Otero 401 (16 parts), Otero 412 (15 parts).

Which mainspring fits the Otero 41?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.40 × 8.5 × 0.09 × 300 mm (GR 3629, hand-wound, normal end hook).

Can I buy spare parts for the Otero 41?

Yes, Master Watch Parts currently has 18 matching items in stock.

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