This is shaped like a Model 800. The dial moves with the knob stud but not buttons. Working condition is UNKNOWN. For PARTS or REPAIR. Please use the zoom feature to closely inspect pictures. My items are sold as-is, there are no returns. Descriptions, pictures and part numbers (when available) are provided. You are responsible for ensuring that it is correct for your application or purpose.Thank you for looking! 41023-3rdCONT