Otero 840 – interchangeable spare parts

Otero 840 movement

Which spare parts fit the Otero 840 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.

17Parts with interchange data
45Calibers 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 840 in our shop

Otero 840 Incomplete Watch Movement as Parts DonorOtero 840 Incomplete Watch Movement as Parts Donor29,00 € incl. VAT *View itemCrown Wheel Rings for OTERO 437, 840, 844, 904 – Part 422Crown Wheel Rings for OTERO 437, 840, 844, 904 – Part 42212,90 € incl. VAT *View itemRatchet Wheel Part 415 for OTERO 70, 25, 72, 73, 844, 840, 904, 44, 46Ratchet Wheel Part 415 for OTERO 70, 25, 72, 73, 844, 840, 904, 44, 4612,90 € incl. VAT *View itemClutch Wheel Part 407 for OTERO 70, 280, 840, 844, 790, 796, 904Clutch Wheel Part 407 for OTERO 70, 280, 840, 844, 790, 796, 90412,90 € – 12,95 € incl. VAT *View itemBarrel Arbor Part 195 for OTERO 236, 237, 336, 337, 840, 844Barrel Arbor Part 195 for OTERO 236, 237, 336, 337, 840, 84411,95 € – 13,95 € incl. VAT *View itemBalance Cock Part 121 for OTERO 74, 742, 236, 237, 336, 840, 262Balance Cock Part 121 for OTERO 74, 742, 236, 237, 336, 840, 26212,95 € – 14,90 € incl. VAT *View itemSetting Lever Screws OTERO 62, Part 5443, for OTERO 70, 79, 840, 162, 77, 335, 740Setting Lever Screws OTERO 62, Part 5443, for OTERO 70, 79, 840, 162, 77, 335, 74012,95 € incl. VAT *View itemHour Wheel for OTERO 70, 71, 72, 73, 74, 77, 840 – Part 255 – NOSHour Wheel for OTERO 70, 71, 72, 73, 74, 77, 840 – Part 255 – NOS9,95 € incl. VAT *View itemCannon Pinion Part 245 for OTERO 70 - 79K, 743, 790, 840Cannon Pinion Part 245 for OTERO 70 - 79K, 743, 790, 84012,90 € incl. VAT *View itemSweep Second Wheel and Pinion for OTERO 740, 840 – Part 227, Height 5.13 or 5.15Sweep Second Wheel and Pinion for OTERO 740, 840 – Part 227, Height 5.13 or 5.1512,90 € incl. VAT *View itemThird Wheel and Pinion Part 210 for OTERO 740, 744, 790, 840, 844Third Wheel and Pinion Part 210 for OTERO 740, 744, 790, 840, 84412,90 € incl. VAT *View itemCenter Wheel Part 206 for OTERO 740, 790, 796, 800, 840, 904Center Wheel Part 206 for OTERO 740, 790, 796, 800, 840, 90412,90 € incl. VAT *View itemCrown Wheel Part 420 for OTERO 840, 844, 846 – EPPLE OTTO – NOSCrown Wheel Part 420 for OTERO 840, 844, 846 – EPPLE OTTO – NOS9,95 € incl. VAT *View itemWinding Pinion OTERO 70 – Part 410 for 70-79K, 712-782, 790-796, 840Winding Pinion OTERO 70 – Part 410 for 70-79K, 712-782, 790-796, 8409,95 € incl. VAT *View itemEscape Wheel for OTERO 844, Part 705, for 740, 744, 840, 846, 904 – NOSEscape Wheel for OTERO 844, Part 705, for 740, 744, 840, 846, 904 – NOS16,90 € incl. VAT *View itemBalance Complete, Part 721/1 for OTERO 844, 740, 744, 790, 794, 796, 840, 846, 904Balance Complete, Part 721/1 for OTERO 844, 740, 744, 790, 794, 796, 840, 846, 90429,90 € incl. VAT *View item

🔧 Interchangeable parts

Part no.DescriptionAlso fits
180barrel with arbor
Otero 844Otero 846
195barrel arbor
Otero 844
195/5415Barrel arbor
Otero 844
227Sweep second wheel
Height 5,13
Otero 740
307/1regulator
Otero 72Otero 73Otero 74Otero 77Otero 79Otero 79KOtero 722Otero 740Otero 742Otero 744Otero 772Otero 796Otero 844Otero 846
364Stud holder
Otero 72Otero 73Otero 74Otero 77Otero 79Otero 79KOtero 722Otero 740Otero 742Otero 744Otero 772Otero 796Otero 844Otero 846
401Winding stem
Otero 70Otero 71Otero 72Otero 73Otero 74Otero 75Otero 76Otero 77Otero 78Otero 79Otero 79KOtero 712Otero 722Otero 740Otero 742Otero 744Otero 772Otero 782Otero 790Otero 792Otero 794Otero 795Otero 796Otero 844Otero 846Otero 904
407clutch wheel
Otero 70Otero 71Otero 72Otero 73Otero 74Otero 75Otero 76Otero 77Otero 78Otero 79Otero 79KOtero 712Otero 722Otero 740Otero 742Otero 744Otero 772Otero 782Otero 790Otero 792Otero 794Otero 795Otero 796Otero 844Otero 846Otero 904
Otero 70Otero 71Otero 72Otero 73Otero 74Otero 77Otero 78Otero 79Otero 177Otero 712Otero 782Otero 792Otero 844Otero 1772
410Winding pinion
Otero 70Otero 71Otero 72Otero 73Otero 74Otero 75Otero 76Otero 77Otero 78Otero 79Otero 79KOtero 712Otero 722Otero 740Otero 742Otero 744Otero 772Otero 782Otero 790Otero 792Otero 794Otero 795Otero 796Otero 844Otero 846Otero 904
415ratchet
Otero 800Otero 844Otero 846
420crown wheel
Otero 844Otero 846
422Crown wheel ring
Otero 844
445Art.Nr. 445“
Otero 40Otero 41Otero 48Otero 70Otero 71Otero 72Otero 73Otero 74Otero 712Otero 722Otero 740Otero 742Otero 744Otero 772Otero 782Otero 790Otero 792Otero 794Otero 844Otero 904
705escape wheel
Otero 740Otero 744Otero 844Otero 846Otero 904
710Jewelled pallet fork and stat
Otero 25Otero 27Otero 46Otero 56Otero 70Otero 71Otero 72Otero 73Otero 74Otero 75Otero 76Otero 77Otero 78Otero 79Otero 79KOtero 790Otero 792Otero 794Otero 795Otero 796Otero 797Otero 800Otero 801Otero 844Otero 845Otero 846Otero 847Otero 901Otero 904
721/1balance
Otero 740Otero 744Otero 790Otero 794Otero 796Otero 844Otero 846Otero 904
5420Crown wheel screw
Otero 236Otero 237Otero 335Otero 336Otero 844Otero 846

Source: checked original Otero spare-part labels · as of 2026-10-17. Height / execution: the part fits only in this height or execution.

🔗 Movements sharing the most parts

→ All calibers of Otero

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