SEIKO SpeedTimer with tachymeter function, day display, and a stylish black dial. - Brand: SEIKO - Model Name: SpeedTimer - Function: Tachymeter - Day Display: Sunday - Size: Approximately 4.5cm - Color: Black - Dial Color: Black - Accessories: None - The quick calendar advance functions well and is operational. The chronograph works, but the button at the 2 o'clock position is difficult to press. There is no history of overhaul, and no operational guarantee is provided. Overhaul is required. - Scratches/Cracks: Present Thank you for viewing.