Sellita · Switzerland · Standard, Special, Premium, Chronometer
Sellita SW200-1
Documented in Sellita's technical records dated 19 August 2008, the SW200-1 is the second-generation centrepiece of Sellita Watch Co. S.A.'s catalogue, produced in La Chaux-de-Fonds. Its development was driven by Swatch Group's 2002 announcement that ETA would progressively restrict movement supply to outside brands from 2003, leaving hundreds of independent Swiss watchmakers without a reliable engine source.
Sellita developed the caliber independently after the ETA 2824-2 patent lapsed rather than copying from a live design. The result is dimensionally identical to the ETA — same 25.6 mm diameter, same 4.6 mm height, same dial-foot positions and crown-stem spec — making it a true drop-in replacement. One deliberate improvement is a 26th jewel added under the ratchet wheel to reduce friction during automatic winding (the ETA 2824-2 has 25). The barrel spring is a Nivaflex mainspring, and a revised gear-tooth profile reduces wear in the automatic winding chain.
Four quality tiers are offered: Standard (adjusted in 2 positions, ±30 s/day), Special/Elaboré (3 positions, ±20 s/day), Premium/Top (5 positions, ±15 s/day), and a COSC-certified Chronometer grade (−4/+6 s/day). Shock protection escalates from Novodiac at Standard to Incabloc at higher tiers.
As ETA's external distribution contracted through the 2010s, the SW200-1 became the default caliber across a large share of the Swiss-made mid-market. Close dimensional compatibility with the ETA 2824-2 lets watchmakers service it with familiar tools and techniques — a practical advantage for independent watchmakers and the micro-brand ecosystem built around this price segment.
Hz
Jewels
Reserve
In catalog
Technical specification
| Manufacturer | Sellita |
| Origin | Switzerland |
| Type | Automatic |
| Beat rate | 28,800 bph · 4 Hz |
| Jewels | 26 |
| Power reserve | 41 h |
| Diameter | 25.6 mm |
| Height | 4.6 mm |
| Hacking seconds | Yes |
| Hand-winding | Yes |
| Date | Yes |
| GMT | No |
| Chronograph | No |
| Accuracy (stated) | Standard ±30 s/day; Special ±20 s/day; Premium ±15 s/day; Chronometer −4/+6 s/day (COSC) |
| Based on | ETA 2824-2 |
5 models
Watches with this caliber
FAQ
Is the Sellita SW200-1 automatic or manual?
The Sellita SW200-1 is an automatic (self-winding) movement: a rotor winds the mainspring from the motion of your wrist, so it needs no battery. It can also be wound by hand via the crown.
What is the power reserve of the Sellita SW200-1?
About 41 hours on a full wind — into a second day, so it keeps running overnight off the wrist. Power reserve is how long the Sellita SW200-1 keeps running once you stop wearing or winding it.
Does the Sellita SW200-1 hack (stop the seconds when you set it)?
Yes. Pulling the crown stops the seconds hand, so the Sellita SW200-1 can be set precisely to a reference time before you push the crown back in. Hacking is what lets you sync several watches — or a watch and a phone — to the exact second.
Does the Sellita SW200-1 have a date function?
Yes — the Sellita SW200-1 can drive a date display, though whether a given watch actually shows the date depends on the dial the maker chose, so check the individual model rather than the movement.
How accurate is the Sellita SW200-1?
The Sellita SW200-1 is rated at Standard ±30 s/day; Special ±20 s/day; Premium ±15 s/day; Chronometer −4/+6 s/day (COSC). That is a normal working range for an uncertified mechanical movement; a COSC-certified chronometer is held to a tighter −4/+6 s/day, and a watchmaker can usually regulate one closer. Real-world accuracy still depends on how each watch is regulated, worn, and serviced.
Spotted something wrong? Report a correction →