Sellita SW200-2 POWER+

The Sellita SW200-2 Power+ was developed internally during 2025 (technical documentation carries an internal date of April 28, 2025). It is the direct successor to the SW200-1, Sellita's most widely produced automatic caliber, first signalled by a pop-up banner on Sellita's own website in December 2025.

The SW200 family traces its roots to the ETA 2824-2: the SW200-1 was engineered as a dimensionally compatible alternative to that benchmark movement. The SW200-2 keeps the same external envelope — 26 mm diameter, 4.6 mm height — making it a straightforward drop-in for brands already on the SW200-1 platform. The similarity ends there internally: Sellita redesigned the gear train (optimized tooth geometry), mainspring barrel, and regulating organ (reduced balance inertia and balance diameter). Sellita identifies major changes to the gear train, barrel, regulating organ, mainplate, shock absorbers, selected bridges, and stop lever, with unlisted components remaining unchanged, leading many observers to describe it as effectively a new movement.

The headline upgrade is the jump from the SW200-1's ~38–41 hours to 65 hours of power reserve, achieved without sacrificing the 28,800 vph (4 Hz) beat rate. That distinction is a deliberate counter to the ETA Powermatic 80, which reaches 80 hours partly by stepping down to 21,600 vph; while the SW200-2 retains the 28,800 vph beat rate, chronometer certification depends on meeting COSC/ISO 3159 testing criteria. A redesigned Incabloc shock system and reworked bridges complete the package.

Given that the SW200-2 shares the complication architecture and footprint of the SW200-1 — and that ETA continues to restrict supply to outside brands — rapid adoption across the mid-range Swiss-made segment is widely anticipated. The first SW200-2-powered watches were just appearing in early 2026.