Ronda 4003. Ronda 4003.B-D6 (3 Hands, Big Date at 6, Swiss Made). Ronda 4003.B-D12 (2 Hands, Big Date at 12, Swiss Made). Hand sizes: 90/150/25 (Hole size: 0.90mm Minute / 1.50mm Hour / 0.25mm SS). 90/150/25 (Hole size: 0.90mm Minute / 1.50mm Hour / 0.25mm SS).