| Manufacturer | ETA Flatline |
| Caliber Number | 955.652, 955652 |
| Replaces | 555.115, 955.114 |
| Dimensions | 11 1/2”’ (25.6mm) x 2.50mm thick |
| Frequency | 32’768 Hz |
| Battery Cell Number | 371 (or 395) |
| Estimated Battery Span | 180 months |
| Stem | Unknown (please add in comments below) |
| Hand Sizes | Unknown (please add in comments below) |
| Jewels | 7 |
| Functions | Hours, minutes, central seconds, date at 3:00 or 6:00, end of battery indicator |
| Country of Manufacture | Switzerland |
| Known Models |
Breitling Starliner, Breitling Colt Oceane, Breitling Skyracer, Sinn UX (add yours in the comments below) |
The ETA caliber 955.652 is a thermocompensated superquartz movement. It is said to have accuracy within +/- 10 seconds per year. It is a high-end brass movement with a gold plated finish.
Although this caliber is often listed as being “Thermoline,” ETA now lists it as “Flatline” on their site.
The caliber 955.652 began production in 2004.
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