Wrist carried wireless instrument

A wrist carried wireless instrument comprises a case inclu­ding circuits and a loop antenna (1) formed outside of the case. An antenna resonance circuit is formed by said loop antenna (1) and at least two capaci­tors (C₁, C₂) connected in series between the ends of said loop antenna (1). The connecting point (A) bet­ween the two capacitors (C₁, C₂) is held at a ground elec­tric potential and the capacitors (C₁, C₂) are arranged such that their connecting point (A) is near to the inter­mediate value of the impedance formed by the capacitors. By this construction of the antenna reso­nance circuit the influence of the human body on the sensi­tivity of the antenna is greatly reduced.