Sellita SW290-1

Automatic movement with small seconds subdial at 9:00 and date at 3:00. Based on SW200-1 architecture. Available with date or as true no-date. Many parts interchangeable with SW200-1, but not all due to small seconds configuration. SW200-1 dials can be used with hole drilled for small seconds. Used by brands like Aquastar (Deepstar II). Available in multiple grades.