The Roamer 402 is a manual wind watch movement that features a sub-second function. It falls under the category of Wehrmachtswerk movement, specifically designed for use in the German military. Although it shares similarities with other A. Schild movements such as the 1560, 1587, 1589, 1594, 1606, 1609, 1616, 1617, 1618, 1623, 1648, and 1697, the exact differences between these models are unknown. The Roamer 402 movement was predominantly used in watches manufactured around 1960.