ETA 2770 – interchangeable spare parts

ETA 2770 movement

Which spare parts fit the ETA 2770 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

40Parts with interchange data
133Calibers sharing parts
Note: We have compiled this overview to the best of our knowledge and belief, based on the original interchangeability lists of ETA and the original spare-part labels. 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 ETA 2770 in our shop

🔧 Interchangeable parts

Part no.DescriptionAlso fits
144ISO 10.300Dial fastener
161ISO 80.400Centre tube
163/1Center pipe
182ISO 20.030Barrel and cover
195ISO 20.060Barrel arbor
203ISO 30.012Intermediate wheel
210ISO 30.025Third wheel
227ISO 30.027Sweep second wheel
242ISO 31.083Cannon pinion with driving wheel
255ISO 31.046Hour wheel
255/1Hour wheel, assembled
260ISO 31.041Minute wheel
307ISO 40.301Regulator without pointer, assembled
307/2ISO 40.302Regulator without pointer, assembled
307/3ISO 40.302Regulator without pointer, assembled
311ISO 70.800Upper cap jewel with end-piece, f. balance
330ISO 70.801Lower cap jewel with end-piece, f. balance
401ISO 51.010Winding stem
407ISO 31.121Clutch wheel
410ISO 31.120Winding pinion
415ISO 31.020Ratchet wheel
420ISO 31.023Crown wheel
425ISO 51.120Click
430ISO 61.080Click spring
435ISO 51.050Yoke
440ISO 61.100Yoke spring
443/1ISO 51.080.06Setting lever, assembled
445ISO 51.090Setting lever spring
450ISO 31.100Setting wheel
462ISO 10.062Minute work cock
705ISO 30.040Escape wheel and pinion with straight pivots
710ISO 40.010Jewelled pallet fork and staff
1143/1ISO 22.010.06Oscillating weight, assembled
1481ISO 32.031Reduction gear
1482ISO 32.033Driving gear for ratchet wheel
1488ISO 32.037Pawl winding wheel, compl. (with pin.)
1498ISO 32.020Bearing wheel for oscillating weight
1530ISO 32.038Additional pawl winding wheel (without pinion)
9433ISO 56.070Stop lever
51498ISO 32.020.01Screw f. bearing wheel of oscill. weight

Source: original interchangeability lists of ETA (checked transcription) and checked original spare-part labels · as of 2026-10-18. Height / execution: the part fits only in this height or execution.

🌀 Matching mainspring

Mainspring dimensions for ETA 2770 (height × diameter × thickness × length) and matching mainspring in our shop:

🔗 Movements sharing the most parts

→ All calibers of ETA

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