ETA® Replacement Bestfit® #770 And #771 Mainsprings Watch Parts And Interchangeable Models
- SKU:
- #770 And #771 Mainsprings
Description
These are balance staffs that require replacement in ETA® movements. This is a very delicate part in a watch. ETA® movements were originally ESA® movements and the movement numbers interchange. Many of these parts interchange with other brands and calibers.
- ETA® movement parts
- Interchanges with ESA®
- Interchanges with many other brands and calibers
- Genuine part numbers
- Part numbers can be found in the Best fit® Matsys® online program in the link below
- Some parts have limited stock
- https://www.esslinger.com/matsys-online-from-bestfit-lifetime-membership-watch-parts-lookup-software/
- These parts are non returnable
**Esslinger & Co. is independent of and not affiliated with or sponsored by ETA ®, ESA®, or Bestfit®. Warranty does not apply to non-genuine parts supplied by Esslinger & Co.**
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