Otero 742 – interchangeable spare parts

Otero 742 movement

Which spare parts fit the Otero 742 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.

22Parts with interchange data

37Calibers 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 742 in our shop

Minute Wheel Part 260 for OTERO 46, 62, 64, 162, 70, 72, 742, 236, 796, 84612,95 € incl. VAT *View item ›

Setting Lever and Screw Part 443 and 5443 for OTERO 70, 740, 742, 722, 71213,95 € incl. VAT *View item ›

Balance Cock Part 121 for OTERO 74, 742, 236, 237, 336, 840, 26212,95 € – 14,90 € incl. VAT *View item ›

Date Jumper Part 2576 for OTERO 412, 482, 712, 722, 742, 772, 792, 177212,95 € incl. VAT *View item ›

Intermediate Date Wheel 2543 for OTERO 712, 722, 742, 744, 772, 782, 792, 792K, 804, 84412,90 € incl. VAT *View item ›

Cannon Pinion for OTERO 712, 722, 742, 772, 782 – Part 24514,90 € incl. VAT *View item ›

More items for Otero 742 in our shop →

🔧 Interchangeable parts

Part no.	Description	Also fits
121/3	Balance cock for stud holder, shock-protecting device, flat hairspring	Otero 74
227	Sweep second wheel	Height 5,40 Otero 712 Otero 722 Otero 782
245	cannon pinion	Height 2,03 Otero 744 Otero 794 Otero 844 Otero 904 Height 2,03 Otero 744
255	hour wheel	Height 1,35 Otero 722 Otero 744 Otero 794 Otero 844 Otero 904
260	Minute wheel	Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 75 Otero 76 Otero 77 Otero 78 Otero 712 Otero 722 Otero 740 Otero 744 Otero 772 Otero 782
301	Regulator for flat hairspring	Otero 74 Otero 77 Otero 79 Otero 146 Otero 177 Otero 772 Otero 792 Otero 1772
307/1	regulator	Otero 72 Otero 73 Otero 74 Otero 77 Otero 79 Otero 79K Otero 722 Otero 740 Otero 744 Otero 772 Otero 796 Otero 840 Otero 844 Otero 846
364	Stud holder	Otero 72 Otero 73 Otero 74 Otero 77 Otero 79 Otero 79K Otero 722 Otero 740 Otero 744 Otero 772 Otero 796 Otero 840 Otero 844 Otero 846 Otero 72 Otero 73 Otero 74 Otero 77 Otero 79 Otero 79K Otero 146 Otero 177 Otero 722
401	Winding stem	Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 75 Otero 76 Otero 77 Otero 78 Otero 79 Otero 79K Otero 712 Otero 722 Otero 740 Otero 744 Otero 772 Otero 782 Otero 790 Otero 792 Otero 794 Otero 795 Otero 796 Otero 840 Otero 844 Otero 846 Otero 904
407	clutch wheel	Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 75 Otero 76 Otero 77 Otero 78 Otero 79 Otero 79K Otero 712 Otero 722 Otero 740 Otero 744 Otero 772 Otero 782 Otero 790 Otero 792 Otero 794 Otero 795 Otero 796 Otero 840 Otero 844 Otero 846 Otero 904
410	Winding pinion	Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 75 Otero 76 Otero 77 Otero 78 Otero 79 Otero 79K Otero 712 Otero 722 Otero 740 Otero 744 Otero 772 Otero 782 Otero 790 Otero 792 Otero 794 Otero 795 Otero 796 Otero 840 Otero 844 Otero 846 Otero 904
415	ratchet	Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 712 Otero 722 Otero 740 Otero 744
420	crown wheel	Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 78 Otero 712 Otero 722 Otero 740 Otero 744 Otero 782
422	Crown wheel ring	Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 712 Otero 722 Otero 740 Otero 744
430	Click spring	Otero 40 Otero 41 Otero 45 Otero 64 Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 712 Otero 722 Otero 740
443+5443	Setting lever with screw	Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 78 Otero 712 Otero 722 Otero 740
445	Art.Nr. 445“	Otero 40 Otero 41 Otero 48 Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 712 Otero 722 Otero 740 Otero 744 Otero 772 Otero 782 Otero 790 Otero 792 Otero 794 Otero 840 Otero 844 Otero 904
450	setting wheel	Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 77 Otero 78 Otero 79 Otero 177 Otero 712 Otero 722 Otero 740 Otero 744 Otero 772
705	escape wheel	Otero 70 Otero 71 Otero 73 Otero 74 Otero 77 Otero 78 Otero 79 Otero 177 Otero 712 Otero 772
2543	Intermediate date wheel	Otero 712 Otero 722 Otero 744 Otero 772 Otero 782 Otero 792 Otero 792K Otero 712 Otero 722 Otero 744 Otero 772 Otero 782 Otero 792 Otero 844
2576	Date jumper, mounted	Otero 412 Otero 482 Otero 712 Otero 722 Otero 772 Otero 792 Otero 1772
5443	screw no (untere Zeilen teils verdeckt)	Otero 70 Otero 71 Otero 72 Otero 73 Otero 74 Otero 78 Otero 712 Otero 722 Otero 740

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

Otero 742: 1.20 × 9.5 × 0.10 × 340 mm (GR 2922)

🔗 Movements sharing the most parts

→ All calibers of Otero

❓ Frequently asked questions

Which Otero 742 spare parts also fit other movements?

For the Otero 742, 22 part numbers are listed as interchangeable. Together they fit 37 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the Otero 742?

The most shared parts: Otero 722 (20 parts), Otero 74 (18 parts), Otero 712 (17 parts).

Which mainspring fits the Otero 742?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.20 × 9.5 × 0.10 × 340 mm (GR 2922, hand-wound, normal end hook).