EB 8837 – interchangeable spare parts

EB 8837 movement

Which spare parts fit the EB 8837 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

43Parts with interchange data

18Calibers 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.

🛒 Spare parts for EB 8837 in our shop

Bettlach EB 8800 PART 307 Regulator EB 8801 8802 8804 8806 ... 883710,90 € incl. VAT *View item ›

Barrel for Bettlach EB 8800 2e, EB 8801, 8802, 8810, 8827, 8837 – Part 181 – NOS10,90 € incl. VAT *View item ›

🔧 Interchangeable parts

Part no.	Description	Also fits
163/1ISO 80.400	Center pipe	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8827
181ISO 20.040	Barrel for drilled core	EB 8800 2e EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
197ISO 20.070.06	Core and ratchet wheel, riveted	EB 8800 2e EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
199ISO 20.062	Barrel axle	EB 8827
200/1ISO 30.014.06	Great wheel, assembled	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
203/5ISO 30.012.06	Intermediate wheel with setting wheel	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
203/5/200/1	Intermediate wheel and pinion	according to original label EB 8800 EB 8801 EB 8802 EB 8804 EB 8805 EB 8806 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
210ISO 30.025	Third wheel	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
227ISO 30.027	Sweep second wheel	EB 8827 Height 660 EB 8827 Height 720 EB 8827 Height 730 EB 8827
243ISO 31.081	Cannon pinion without clam notch	EB 8827 Height 330 EB 8827 Height 390 EB 8827
260ISO 31.041	Minute wheel	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8827
301ISO 40.301	Regulator for flat hairspring	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
307ISO 40.301	Regulator with adjustable stud holder, for flat hairspring	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
334/1ISO 70.860	Upper cap jewels with end-pieces, for three wheels	EB 8801 EB 8803 EB 8805 EB 8811 EB 8813 EB 8815 EB 8827 2nd execution EB 8801 EB 8803 EB 8804 EB 8805 EB 8811 EB 8813 EB 8815 EB 8827
401ISO 51.010	Winding stem	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827 according to original label EB 8800 EB 8801 EB 8802 EB 8804 EB 8805 EB 8806 EB 8810 EB 8811 EB 8812 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
407ISO 31.121	Clutch wheel	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
410ISO 31.120	Winding pinion	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
420ISO 31.023	Crown wheel	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
425ISO 51.120	Click	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
430ISO 61.080	Click spring	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
435/1ISO 51.050	Spring yoke	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
443/1ISO 51.080.06	Setting lever, assembled	EB 8800 EB 8801 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827 Height 376 EB 8800 EB 8801 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
450ISO 31.100	Setting wheel	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816
466ISO 10.210	Lid for winding and setting mechanisms	EB 8827
479ISO 61.090	Pressure spring for setting lever	EB 8827
790ISO 30.041	Pin escape wheel, pivoted	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
790/2ISO 30.041.10	Pin escape wheel for upper end-piece	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
791ISO 40.102.45	Balance staff for finger	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
794ISO 40.055	Balance with finger, regulated	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827 EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
798ISO 40.125	Finger	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
800ISO 40.012	Pin pallet fork for finger	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
820/791ISO 40.102.25	Balance staff for finger and for shock-protecting device	EB 8800 EB 8801 EB 8802 EB 8803 EB 8804 EB 8805 EB 8806 EB 8808 EB 8810 EB 8811 EB 8813 EB 8814 EB 8815 EB 8816 EB 8820 EB 8821 EB 8827
2535ISO 13.105 (13.104	Date indicator guard	EB 8827
2557/1ISO 91.440	Date indicator, transferred	EB 8827
2558ISO 33.010	Double-toothing hour wheel	EB 8827 Height 245 EB 8827 Height 305 EB 8827
2561/1ISO 91.441	Day indicator, for horizontal rectangular window opening at 3 o'clock	EB 8827
2577ISO 53.081	Day jumper	EB 8827
2621ISO 33.029 (33.030		EB 8827
2628ISO 53.140		EB 8804 EB 8805 EB 8806 EB 8814 EB 8815 EB 8816 EB 8827
2646ISO 53.040		EB 8827
2696ISO 53.200		EB 8827
2697ISO 33.110		EB 8827
2698ISO 53.122		EB 8827

Source: original interchangeability lists of EB (checked transcription) and checked original spare-part labels · as of 2026-10-28. Height / execution: the part fits only in this height or execution.

🌀 Matching mainspring

Mainspring dimensions for EB 8837 (height × diameter × thickness × length) and matching mainspring in our shop:

EB 8837: 1.35 × 11.0 × 0.135 × 340 mm (GR 3518)

🔗 Movements sharing the most parts

→ All calibers of EB

❓ Frequently asked questions

Which EB 8837 spare parts also fit other movements?

For the EB 8837, 43 part numbers are listed as interchangeable. Together they fit 18 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the EB 8837?

The most shared parts: EB 8827 (53 parts), EB 8805 (32 parts), EB 8815 (32 parts).

Which mainspring fits the EB 8837?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.35 × 11.0 × 0.135 × 340 mm (GR 3518, hand-wound, normal end hook).