Sellita SW331-2
Factory specs
- Caliber
- SW331-2
- Made in
- Switzerland
- Frequency
- 28,800 bph (4 Hz)
- Power reserve
- 56 h
- Jewels
- 25
- Hacking
- Yes
- Hand winding
- Yes
- Accuracy
- —
- Diameter
- 25.6 mm
- Height
- 4.1 mm
- Functions
- Hours, Minutes, Seconds, Date, GMT
- Same family
- Sellita SW330-2
World-time version of the SW330-2: instead of a centre GMT hand it turns a central 24-hour disc, read against a city ring for world time. Sellita's 2026-2027 catalogue (where it is marked "new") gives 11½''', Ø25.60mm, 4.10mm high, 25 jewels, 28,800 vph, typical power reserve 56h, ball-bearing rotor, stop-second, and date and world time with quick setting (crown positions: winding, date and world-time setting, time setting). The catalogue page gives no grades and no technical documentation sheet was found; brands sell it in Elaboré grade (Farer: "adjusted for accuracy in four positions"). Farer's World Timers launched in 2024 with what Worn & Wound called a customised SW330-1 with a rotating 24-hour disc, which this caliber appears to formalise. "gmt" in functions stands for the 24-hour disc.
Watches with the Sellita SW331-2
| Watch | Price from | Movement | Dia. mm | Thick mm | Crystal | Micro-adjust |
|---|---|---|---|---|---|---|
 Farer World Timer |
$2,066 | Sellita SW331-2 | 39 | 11 | Sapphire | — |