Otero 139 – interchangeable spare parts

Otero 139 movement

Which spare parts fit the Otero 139 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.

21Parts with interchange data
11Calibers 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 139 in our shop

🔧 Interchangeable parts

Part no.DescriptionAlso fits
180barrel with arbor
195barrel arbor
195/5415Barrel arbor
201center wheel
210third wheel
260Minute wheel
301Regulator for flat hairspring
307/1regulator
364Stud holder
407clutch wheel
410Winding pinion
415ratchet
420crown wheel
422Crown wheel ring
430Click spring
440Yoke spring
443setting lever
443+5443Setting lever with screw
445Art.Nr. 445“
702escape wheel
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 139 (height × diameter × thickness × length) and matching mainspring in our shop:

🔗 Movements sharing the most parts

→ All calibers of Otero

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