Otero 125 – interchangeable spare parts

Otero 125 movement

Which spare parts fit the Otero 125 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.

11Parts with interchange data

6Calibers 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 125 in our shop

Setting Wheel for Minute Wheel for OTERO 25, 27, 125, 44, 46, 146 – Part 45111,95 € incl. VAT *View item ›

Rocking Bar Spring Part 439 for OTERO 22, 25, 27, 125, 127, 251, 4410,90 € incl. VAT *View item ›

Rocking Bar Part 437 for OTERO 22, 25, 27, 125, 127, 25113,95 € incl. VAT *View item ›

Pallet Cock for OTERO 262, 334, 335, 336, 337, 362, 365 – Part 12512,95 € incl. VAT *View item ›

Hour Wheel PART 250 for OTERO 25, 27, 56, 1259,95 € incl. VAT *View item ›

OTERO Cannon Pinion Part 240 for OTERO 25, 125, 251, 27, 56, 12711,90 € – 12,90 € incl. VAT *View item ›

More items for Otero 125 in our shop →

🔧 Interchangeable parts

Part no.	Description	Also fits
195/1	Drilled barrel arbor	Otero 25 Otero 251
201	center wheel	Otero 25 Otero 251
240	cannon pinion	Height 3,00 Otero 25 Otero 251
260	Minute wheel	Otero 25 Otero 27 Otero 56 Otero 127 Otero 156 Otero 251
301	Regulator for flat hairspring	Otero 25 Otero 27 Otero 56 Otero 127 Otero 156 Otero 251
421	Lower crown wheel	Otero 25 Otero 27 Otero 127 Otero 251
425	click	Otero 25 Otero 27 Otero 127 Otero 251
437	Rocking bar	Otero 25 Otero 27 Otero 127 Otero 251
439	Rocking bar spring	Otero 25 Otero 251
443	setting lever	Otero 25 Otero 27
705	escape wheel	Otero 25 Otero 27 Otero 56 Otero 127 Otero 156 Otero 251

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

Otero 125: 1.25 × 7.5 × 0.09 × 240 mm (GR 3095) · 🛒 1

🔗 Movements sharing the most parts

→ All calibers of Otero

❓ Frequently asked questions

Which Otero 125 spare parts also fit other movements?

For the Otero 125, 11 part numbers are listed as interchangeable. Together they fit 6 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the Otero 125?

The most shared parts: Otero 25 (11 parts), Otero 251 (10 parts), Otero 27 (7 parts).

Which mainspring fits the Otero 125?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.25 × 7.5 × 0.09 × 240 mm (GR 3095, hand-wound, normal end hook).