Sellita SW210-1
Factory specs
- Caliber
- SW210-1
- Made in
- Switzerland
- Frequency
- 28,800 bph (4 Hz)
- Power reserve
- 45 h
- Jewels
- 18
- Hacking
- Yes
- Hand winding
- Yes
- Accuracy
- —
- Diameter
- 25.6 mm
- Height
- 3.35 mm
- Functions
- Hours, Minutes, Seconds, Date
Factory grades
| Grade | Accuracy | Notes |
|---|---|---|
| Elaboré | 0 / +14 s/day | Mean rate 7 ±7 s/day, max. divergence 20 s/day, 3 positions (CH, 6H, 9H); isochronism ±15 s/day; nickel gilt balance. Often marketed as "Special". |
| Top | 0 / +8 s/day | Mean rate 4 ±4 s/day, max. divergence 15 s/day, 5 positions; isochronism ±10 s/day; Glucydur gilt balance. Often marketed as "Premium". |
| Chronomètre | -4 / +6 s/day | COSC criteria |
Hand-wound version of the SW200-1 (no rotor), the counterpart of the ETA 2801-2 (not in this database). Sellita technical documentation (02.09.2024): case fitting Ø25.60mm, 3.35mm high, 18 jewels, 28,800 vph, power reserve minimum 42h / typical 45h, lift angle 50°, Incabloc, stop-second. "SW210-1 a" has the date (recorded here); "SW210-1 b" is the no-date version. Caliber Corner lists 18 or 19 jewels and 42h, apparently from older documents; the current Sellita figures are used here. Caliber Corner and older material also list a "Standard" grade (2 positions, ±12 s/day, max. 30 s/day) that the current documentation does not show. Succeeded by the SW200-2 M Power+ (65h).
