Otero 73 – interchangeable spare parts

Otero 73 movement

Which spare parts fit the Otero 73 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

56Calibers 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 73 in our shop

Ratchet Wheel Part 415 for OTERO 70, 25, 72, 73, 844, 840, 904, 44, 4612,90 € incl. VAT *View item ›

Click Screws for OTERO 70, 71, 72, 73, 74, 712, 904 – Part 542512,95 € incl. VAT *View item ›

Otero Part 5101 Case Screws for Otero 64, 904, 72, 73, 74, 79, 72212,95 € incl. VAT *View item ›

Hour Wheel for OTERO 70, 71, 72, 73, 74, 77, 840 – Part 255 – NOS9,95 € incl. VAT *View item ›

Cannon Pinion PART 245 for OTERO 70, 71, 72, 73, 74, 78 – NOS12,90 € incl. VAT *View item ›

Third Wheel and Pinion Part 210 for OTERO 70, 71, 72, 73, 712, 74211,90 € incl. VAT *View item ›

More items for Otero 73 in our shop →

🔧 Interchangeable parts

Part no.	Description	Also fits
180	barrel with arbor	Otero 70 Otero 71 Otero 72 Otero 74 Otero 77 Otero 78 Otero 177 Otero 712 Otero 722
195/5415	Barrel arbor	Otero 70 Otero 71 Otero 72 Otero 74 Otero 77 Otero 79 Otero 79K Otero 177 Otero 712 Otero 722
227	Sweep second wheel	Height 5,10 Otero 70 Otero 71 Otero 72 Otero 74 Otero 77
260	Minute wheel	Otero 70 Otero 71 Otero 72 Otero 74 Otero 75 Otero 76 Otero 77 Otero 78 Otero 712 Otero 722 Otero 740 Otero 742 Otero 744 Otero 772 Otero 782
307/1	regulator	Otero 72 Otero 74 Otero 77 Otero 79 Otero 79K Otero 722 Otero 740 Otero 742 Otero 744 Otero 772 Otero 796 Otero 840 Otero 844 Otero 846
364	Stud holder	Otero 72 Otero 74 Otero 77 Otero 79 Otero 79K Otero 722 Otero 740 Otero 742 Otero 744 Otero 772 Otero 796 Otero 840 Otero 844 Otero 846 Otero 72 Otero 74 Otero 77 Otero 79 Otero 79K Otero 146 Otero 177 Otero 722 Otero 742
401	Winding stem	Otero 70 Otero 71 Otero 72 Otero 74 Otero 75 Otero 76 Otero 77 Otero 78 Otero 79 Otero 79K Otero 712 Otero 722 Otero 740 Otero 742 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 74 Otero 75 Otero 76 Otero 77 Otero 78 Otero 79 Otero 79K Otero 712 Otero 722 Otero 740 Otero 742 Otero 744 Otero 772 Otero 782 Otero 790 Otero 792 Otero 794 Otero 795 Otero 796 Otero 840 Otero 844 Otero 846 Otero 904 Otero 70 Otero 71 Otero 72 Otero 74 Otero 77 Otero 78 Otero 79 Otero 177 Otero 712 Otero 782 Otero 792 Otero 840 Otero 844 Otero 1772
410	Winding pinion	Otero 70 Otero 71 Otero 72 Otero 74 Otero 75 Otero 76 Otero 77 Otero 78 Otero 79 Otero 79K Otero 712 Otero 722 Otero 740 Otero 742 Otero 744 Otero 772 Otero 782 Otero 790 Otero 792 Otero 794 Otero 795 Otero 796 Otero 840 Otero 844 Otero 846 Otero 904 Otero 70 Otero 71 Otero 72 Otero 74 Otero 77
415	ratchet	Otero 70 Otero 71 Otero 72 Otero 74 Otero 712 Otero 722 Otero 740 Otero 742 Otero 744
420	crown wheel	Otero 70 Otero 71 Otero 72 Otero 74 Otero 78 Otero 712 Otero 722 Otero 740 Otero 742 Otero 744 Otero 782
422	Crown wheel ring	Otero 70 Otero 71 Otero 72 Otero 74 Otero 712 Otero 722 Otero 740 Otero 742 Otero 744
425	click	Otero 37 Otero 39 Otero 56 Otero 58 Otero 70 Otero 71 Otero 72 Otero 74 Otero 137 Otero 156 Otero 391 Otero 712
430	Click spring	Otero 40 Otero 41 Otero 45 Otero 64 Otero 70 Otero 71 Otero 72 Otero 74 Otero 712 Otero 722 Otero 740 Otero 742
435	clutch lever	Otero 40 Otero 41 Otero 48 Otero 70 Otero 71 Otero 72 Otero 74 Otero 77 Otero 78 Otero 79 Otero 401 Otero 412 Otero 481
440	Yoke spring	Otero 40 Otero 41 Otero 70 Otero 71 Otero 72 Otero 74 Otero 140 Otero 141
443	setting lever	Otero 70 Otero 71 Otero 72 Otero 74 Otero 78
443+5443	Setting lever with screw	Otero 70 Otero 71 Otero 72 Otero 74 Otero 78 Otero 712 Otero 722 Otero 740 Otero 742
445	Art.Nr. 445“	Otero 40 Otero 41 Otero 48 Otero 70 Otero 71 Otero 72 Otero 74 Otero 712 Otero 722 Otero 740 Otero 742 Otero 744 Otero 772 Otero 782 Otero 790 Otero 792 Otero 794 Otero 840 Otero 844 Otero 904 Otero 40 Otero 41 Otero 48 Otero 70 Otero 71 Otero 72 Otero 74 Otero 77 Otero 78 Otero 79 Otero 401 Otero 412 Otero 481
450	setting wheel	Otero 70 Otero 71 Otero 72 Otero 74 Otero 77 Otero 78 Otero 79 Otero 177 Otero 712 Otero 722 Otero 740 Otero 742 Otero 744 Otero 772
462	Minute work cock	Otero 72 Otero 74 Otero 77 Otero 79 Otero 79K
702	escape wheel	Otero 70 Otero 71 Otero 72 Otero 74 Otero 77 Otero 78 Otero 79 Otero 177 Otero 712 Otero 722
705	escape wheel	Otero 70 Otero 71 Otero 74 Otero 77 Otero 78 Otero 79 Otero 177 Otero 712 Otero 742 Otero 772
710	Jewelled pallet fork and stat	Otero 25 Otero 27 Otero 46 Otero 56 Otero 70 Otero 71 Otero 72 Otero 74 Otero 75 Otero 76 Otero 77 Otero 78 Otero 79 Otero 79K Otero 790 Otero 792 Otero 794 Otero 795 Otero 796 Otero 797 Otero 800 Otero 801 Otero 840 Otero 844 Otero 845 Otero 846 Otero 847 Otero 901 Otero 904
721/1	balance	Otero 72 Otero 74 Otero 77 Otero 79 Otero 79K Otero 772 Otero 792 Otero 792K Otero 1772
5101	Case screw	Otero 72 Otero 74 Otero 79 Otero 722 Otero 740
5420	Crown wheel screw	Otero 70 Otero 71 Otero 72 Otero 74 Otero 712
5425	Click screw	Otero 70 Otero 71 Otero 72 Otero 74 Otero 712 Otero 70 Otero 71 Otero 72 Otero 74 Otero 712
5443	screw no (untere Zeilen teils verdeckt)	Otero 70 Otero 71 Otero 72 Otero 74 Otero 78 Otero 712 Otero 722 Otero 740 Otero 742

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

Otero 70 à 74: 1.20 × 9.5 × 0.095 × 340 mm (GR 2905)

🔗 Movements sharing the most parts

→ All calibers of Otero

❓ Frequently asked questions

Which Otero 73 spare parts also fit other movements?

For the Otero 73, 29 part numbers are listed as interchangeable. Together they fit 56 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the Otero 73?

The most shared parts: Otero 74 (34 parts), Otero 72 (33 parts), Otero 70 (28 parts).

Which mainspring fits the Otero 73?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.20 × 9.5 × 0.095 × 340 mm (GR 2905, hand-wound, normal end hook).