Matte Black Watch Movement Ox & Bull Trading Co. Cufflinks - Vintage wind-up watch movements. Matte black plated base metal; Approximately 3/4 in diameter; Bullet back closure. A true collectors piece, actual movements are taken from wind-up watches of the early to mid 20th Century. Featuring gears, levers and jewels, Matte Black Watch Movement Cufflinks allow you to wear engineering at its finest. Note: **Please note that this product is constructed from vintage watch parts and functionality of the watch movements is not guaranteed. Actual watch movements can vary slightly from the pair in the photograph**.