Otero 37 – interchangeable spare parts

Otero 37 movement

Which spare parts fit the Otero 37 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.

29Parts with interchange data

34Calibers 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 37 in our shop

Friction Spring Part 471 for OTERO 37, 39, 58, 371, 39112,90 € incl. VAT *View item ›

Yoke Spring for OTERO 37, 44, 56, 62, 156, 162, 262, 362, 801 – Part 44012,90 € incl. VAT *View item ›

Click Spring PART 430 for OTERO 27, 37, 62, 162, 262, 70, 844, 48, 90414,90 € incl. VAT *View item ›

Crown Wheel Rings for OTERO 37, 365, 40, 78, 58 – Part 422 (2 pcs)9,90 € incl. VAT *View item ›

Lower Shock Protection Part 381 for OTERO 27, 37, 39, 127, 13711,95 € incl. VAT *View item ›

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

More items for Otero 37 in our shop →

🔧 Interchangeable parts

Part no.	Description	Also fits
180	barrel with arbor	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371
195	barrel arbor	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371
195/5415	Barrel arbor	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371
206	center wheel	Otero 39 Otero 58 Otero 371 Otero 391 Otero 581
210	third wheel	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371
245	cannon pinion	Height 1,63 Otero 39 Otero 58
260	Minute wheel	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371
275	Sweep second pinion	Height 5,10 Otero 39 Otero 58
301	Regulator for flat hairspring	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371
307/1	regulator	Otero 39 Otero 137 Otero 139 Otero 371 Otero 391 Otero 1371 Otero 1391
364	Stud holder	Otero 27 Otero 39 Otero 127 Otero 137 Otero 139 Otero 371 Otero 391 Otero 1371
381	Shock protection, lower	Otero 27 Otero 39 Otero 127 Otero 137
401	Winding stem	Otero 39 Otero 56 Otero 62 Otero 156 Otero 162 Otero 236 Otero 237 Otero 262 Otero 336 Otero 337 Otero 362 Otero 39 Otero 58 Otero 62 Otero 162 Otero 236 Otero 237 Otero 262 Otero 335 Otero 336 Otero 337 Otero 362
407	clutch wheel	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371
410	Winding pinion	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371
415	ratchet	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371 Otero 1391
420	crown wheel	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371 Otero 1391
422	Crown wheel ring	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371
425	click	Otero 39 Otero 56 Otero 58 Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 137 Otero 156 Otero 391 Otero 712
430	Click spring	Otero 39 Otero 58 Otero 62 Otero 137 Otero 162 Otero 262 Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371
440	Yoke spring	Otero 39 Otero 137 Otero 139 Otero 371 Otero 391 Otero 1371 Otero 1391
443	setting lever	Otero 39 Otero 58 Otero 137 Otero 139 Otero 39 Otero 58 Otero 137 Otero 139
443+5443	Setting lever with screw	Otero 39 Otero 58 Otero 137 Otero 139 Otero 391 Otero 1371 Otero 1391 Otero 39 Otero 58 Otero 137 Otero 139
445	Art.Nr. 445“	Otero 39 Otero 58 Otero 137 Otero 139 Otero 371 Otero 391 Otero 581 Otero 1371
471	Friction spring for sweep second pinion	Otero 39 Otero 58 Otero 371 Otero 391
702	escape wheel	Otero 39 Otero 58 Otero 137 Otero 139 Otero 391 Otero 581 Otero 1371 Otero 1391
705	escape wheel	Otero 137 Otero 371 Otero 1371
710	Jewelled pallet fork and stat	Otero 39 Otero 40 Otero 41 Otero 44 Otero 45 Otero 48 Otero 58 Otero 371 Otero 391 Otero 401
721/1	balance	Height 2,75 Otero 39 Otero 137 Otero 139 Otero 371 Height 2,85 Otero 39 Otero 137 Otero 139 Otero 371

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

Otero 37: 1.20 × 6.5 × 0.085 × 200 mm (GR 2883)

🔗 Movements sharing the most parts

→ All calibers of Otero

❓ Frequently asked questions

Which Otero 37 spare parts also fit other movements?

For the Otero 37, 29 part numbers are listed as interchangeable. Together they fit 34 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the Otero 37?

The most shared parts: Otero 39 (33 parts), Otero 137 (27 parts), Otero 58 (26 parts).

Which mainspring fits the Otero 37?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.20 × 6.5 × 0.085 × 200 mm (GR 2883, hand-wound, normal end hook).