Abstract: In watches to be worn on the body, the support member such as a wrist strap or neck band often is secured to the watch by means of a connecting member at a distance from the periphery of the watch casing. Generally tongue portions are formed on the watch casing and the connecting members fitted thereto and secured against movement in a direction opposite to the fitting direction by complex means such as screw and springs. In the improved watch casing of the invention, tongue portions (1a) are formed on the casing shell (1). The connecting members (4) which can be fitted from above engage into recesses in the tongue portions and are thereby secured in position transversely with respect to the direction of fitting.