This is a Wyler manual-winding wristwatch. The movement is ETA, but it's a so-called Wyler Incaflex. Since it hasn't been overhauled since I acquired it, I recommend an overhaul for actual use. Brand: Wyler Movement: ETA 1190 Case: Approximately 35.5mm x Approximately 23mm (Approximately 26mm including the crown) Lug width: Approximately 16mm Time setting: Possible Winding: Possible On a flat surface, it appears to gain +52 seconds per day.