Chrome plated steel case, non-rusting , dust and damp-proof, 7 jewelled lever movement bold figures, white dial and blue steel hands. With start, stop and reset arrangement.
Two sweep hands, one indicating seconds, the other recording minutes. Start/stop lever on left-hands side, zero reset lever on right hand side . Runs for 30 hours on one winding. Diameter of dial is 100 mm. divided 0-60 x 1.
For periods of up to 60 min, the end of period being signalled by a long bell ring. With indicator which is tuned to the required period thereby winding and starting the clock mechanism. Dial 50mm approx.
