Sellita SW510

Automatic chronograph with 3-6-9 subdial layout based on ETA/Valjoux 7750. Alternative subdial configuration to SW500's 6-9-12 layout. Features 30-minute counter at 3:00, 12-hour counter at 6:00, and small seconds at 9:00. Available in multiple variants including bi-compax versions (SW510 BH). Upgraded with RDM+ barrel in 2020 for 62-hour power reserve. Manual-wind versions available as SW510 M. Available in Elaboré, Top, and Chronometer grades.