ETA 2750, 2751, 2752, 2763, 2764, 2769.1 mainspring #770 vintage swiss alloy!!!
Specifications
| All Returns Accepted | ReturnsNotAccepted |
| Country/Region Of Manufacture | Switzerland |
| Model | 2750 |
| Year Of Manufacture | 1950-1959 |
| Type | Mainsprings |
| MPN | 770 |
| Brand | ETA |
Vintage Swiss made alloy mainspring with standard tongue end formanual winding movements. Metric dimensions are 1.43mm high X .11mm strength X 400mm longThe diameter when in the cage is 10.9mmFits ETA 2750, 2751, 2752, 2763, 2764, 2769-1This spring can also be used with the following mfg/models.Kurth, Certina 28.15 and 28.16Also MSR S8 There may be others, but I am not aware of them. I took one out of the aluminum cage to show the tongue end. This is a very high quality vintage swiss made alloy spring as you can see and has a long tongue to catch the lip in the barrel easily.You will get a spring that is still in the cage. I only took one out to shoot pics to show the tongue and to show that these are good springs. They are not "set". This spring is intended for use in manual winding wristwatch movements only. Not to be used in an automatic winding movement.Ask any questions you have before you purchase.