Mechanical stop watches with base-metal or other cases, hand-wound timers with start, stop and reset buttons for measuring elapsed time.

Give the timing scale and accuracy, and protect the buttons and crystal with padded inserts in a rigid carton. Watches, clocks and movements are small, high-value and easily pilfered: insure cargo, ship in sealed cartons with tamper tape, state movement type, case material and country of origin on the invoice, and check destination import duty and origin-labelling rules; battery-powered pieces need button cell or lithium declarations.