Stop Clock Black (Smith Type)

Durable, easy to use, spring-wound stop-clock useful for student labs and classroom demonstration. Large dial about 100mm in diameter, with big pointer hands provides easy reading even from a distance. Bigger main dial with larger sweep hand reading 0-60 x 1 second with smaller dial reading 0-60 x 1 minute. Includes start/stop lever on left side and zero reset lever on its right side. Housed in a durable light-weight casing. Runs for about 30 hours on one complete winding. Metal Casing with scratch-resistant epoxy coating.