Otero 144 – interchangeable spare parts

Otero 144 movement

Which spare parts fit the Otero 144 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.

16Parts with interchange data

12Calibers 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 144 in our shop

Lower Crown Wheel Part 421 for OTERO 25, 27, 44, 46, 144, 146, 44111,90 € incl. VAT *View item ›

Winding Pinion Part 411 for OTERO 25, 27, 44, 46, 144, 146, 441, 144111,95 € incl. VAT *View item ›

Regulator Part 307/1 for OTERO 37, 62, 64, 144, 152, 262, 139, 144111,95 € incl. VAT *View item ›

Date Jumper for OTERO 401, OTERO 44, OTERO 144 – Part 257612,95 € incl. VAT *View item ›

OTERO Cannon Pinion Part 245 for OTERO 40, 41, 44, 45, 48, 14411,90 € incl. VAT *View item ›

Center Wheel for OTERO 40, 41, 44, 45, 48, 144, 482 – Part 20612,90 € incl. VAT *View item ›

More items for Otero 144 in our shop →

🔧 Interchangeable parts

Part no.	Description	Also fits
195/1	Drilled barrel arbor	Otero 44 Otero 441 Otero 1441
260	Minute wheel	Otero 40 Otero 41 Otero 44 Otero 45 Otero 48 Otero 140 Otero 401 Otero 412 Otero 441
307/1	regulator	Otero 1441
401	Winding stem	Otero 44 Otero 45 Otero 46 Otero 146 Otero 441 Otero 1441 Otero 44 Otero 45 Otero 46 Otero 146 Otero 441 Otero 1441
411	Winding pinion	Otero 44 Otero 46 Otero 146 Otero 441 Otero 1441
416	Lower ratchet wheel	Otero 44 Otero 45 Otero 46 Otero 146
421	Lower crown wheel	Otero 44 Otero 45 Otero 46 Otero 146 Otero 441 Otero 1441
422	Crown wheel ring	Otero 44 Otero 45 Otero 46 Otero 146 Otero 441 Otero 1441
425	click	Otero 44 Otero 46 Otero 146 Otero 441 Otero 1441
435	clutch lever	Otero 44 Otero 45 Otero 46 Otero 146 Otero 441 Otero 1441
440	Yoke spring	Otero 44 Otero 45 Otero 46 Otero 146 Otero 441 Otero 1441
443	setting lever	Otero 44 Otero 45 Otero 441 Otero 1441
443+5443	Setting lever with screw	Otero 44 Otero 45 Otero 441 Otero 1441
445	Art.Nr. 445“	Otero 44 Otero 45 Otero 46 Otero 146 Otero 441 Otero 1441
705	escape wheel	Otero 40 Otero 41 Otero 44 Otero 45 Otero 48 Otero 140 Otero 401 Otero 412 Otero 441
721	Balance with flat hairspring, regulated	Otero 1441

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

Otero 144: 1.40 × 8.5 × 0.09 × 300 mm (GR 3629)

🔗 Movements sharing the most parts

→ All calibers of Otero

❓ Frequently asked questions

Which Otero 144 spare parts also fit other movements?

For the Otero 144, 16 part numbers are listed as interchangeable. Together they fit 12 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the Otero 144?

The most shared parts: Otero 44 (15 parts), Otero 441 (14 parts), Otero 1441 (14 parts).

Which mainspring fits the Otero 144?

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).