EB 8330-66 – interchangeable spare parts

EB 8330-66 movement

Which spare parts fit the EB 8330-66 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

28Parts with interchange data
56Calibers sharing parts
Note: We have compiled this overview to the best of our knowledge and belief, based on the original interchangeability lists of EB 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.

🔧 Interchangeable parts

Part no.DescriptionAlso fits
163/1ISO 80.400Center pipe
181/1ISO 20.040.06Barrel for drilled core with driving wheel / driving pinion
197ISO 20.070.06Core and ratchet wheel, riveted
199ISO 20.062Barrel axle
203ISO 30.012Intermediate wheel and pinion
210Third wheel
220ISO 30.027Fourth wheel
243/1ISO 31.081.18Cannon pinion, undrilled, without clam notch, smooth hole
250ISO 31.046Hour wheel
260ISO 31.041Minute wheel
307ISO 40.301Regulator with adjustable stud holder, for flat hairspring
311ISO 70.800Upper cap jewel with end-piece
330ISO 70.801Lower cap jewel with end-piece
401ISO 51.010Winding stem
407ISO 31.121Clutch wheel
410ISO 31.120Winding pinion
420ISO 31.023Crown wheel
425ISO 51.120Click
430ISO 61.080Click spring
435/1ISO 51.050Spring yoke
443/1ISO 51.080.06Setting lever, assembled
450ISO 31.100Setting wheel
790ISO 30.041Pin escape wheel, pivoted
792ISO 41.101.41Balance staff for roller
793ISO 40.054Balance with roller, regulated
794ISO 40.055Balance with finger, regulated
799/4ISO 40.123Small roller
821/792ISO 40.101.26Balance staff for roller and for shock-protecting device

Source: original interchangeability lists of EB (checked transcription) and checked original spare-part labels · as of 2026-10-17. Height / execution: the part fits only in this height or execution.

🌀 Matching mainspring

Mainspring dimensions for EB 8330-66 (height × diameter × thickness × length) and matching mainspring in our shop:

🔗 Movements sharing the most parts

→ All calibers of EB

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