![Ressort Barillet de Montre - ETA 734 / 735 / 736 / 737 / 739 [NOS] (Mainspring)](https://legardetempsboutique.com/wp-content/uploads/2026/07/57-11238.jpg)
New old stock barrel spring for ETA caliber 734 / 735 / 736 / 737 / 739.
Replacement mainspring for watch movement, compatible with ETA caliber 734 / 735 / 736 / 737 / 739. New old stock (NOS) part, may show slight traces due to storage.
Sold individually (unless otherwise stated in the title) · NOS · May show signs of age · Photos are representative
Features
| Kind | Barrel spring |
|---|---|
| Compatible caliber | ETA 734 / 735 / 736 / 737 / 739 |
| State | New, old stock (NOS) |
Origin
These parts may come from different suppliers and stocks depending on availability. Regardless of their origin, excellent quality is guaranteed; each item is carefully selected before being offered for sale.
![Ressort Barillet de Montre - AS 1187 / 1194 [NOS] (Mainspring)](https://legardetempsboutique.com/wp-content/uploads/2026/07/57-11211-300x300.jpg)
![Ressort Barillet de Montre - AS 1203 [NOS] (Mainspring)](https://legardetempsboutique.com/wp-content/uploads/2026/07/57-11214-300x300.jpg)
![Ressort Barillet de Montre - AS 976 [NOS] (Mainspring)](https://legardetempsboutique.com/wp-content/uploads/2026/07/57-11206-300x300.jpg)
![Ressort Barillet de Montre - CORTEBERT 657 [NOS] (Mainspring)](https://legardetempsboutique.com/wp-content/uploads/2026/07/57-11224-300x300.jpg)
Reviews
There are no reviews yet.