A time tracking system includes a stopwatch having a waterproof housing, the stopwatch further having a control system with a transceiver for communication; a first sensor secured to a first end of a swimming lane, the first sensor to communicate with the stopwatch via the transceiver; the control system is to track swimming speed based off of communication with the first sensor.

A control method and an electronic device are provided. The electronic device includes: a housing having an accommodating space, where the housing is provided with a recess around the accommodating space, and a first electrode and a second electrode are disposed on a bottom surface of the recess; and a bezel, where at least one part of the bezel is disposed in the recess. When the bezel is located at a first position of the recess, the first electrode and the second electrode are conductively connected; and when the bezel is located at a second position of the recess, the first electrode and the second electrode are conductively disconnected.

A control method and an electronic device are provided. The electronic device includes: a housing having an accommodating space, where the housing is provided with a recess around the accommodating space, and a first electrode and a second electrode are disposed on a bottom surface of the recess; and a bezel, where at least one part of the bezel is disposed in the recess. When the bezel is located at a first position of the recess, the first electrode and the second electrode are conductively connected; and when the bezel is located at a second position of the recess, the first electrode and the second electrode are conductively disconnected.

An electronic device and a control method are provided. The electronic device includes: a housing with an accommodating space, where the housing is provided with a groove surrounding the accommodating space, and a first dielectric and a second dielectric are disposed on a sidewall of the groove; and a bezel, where at least part of the bezel is disposed in the groove; and the bezel is capable of rotating around an axial direction of the housing in the groove.

An electronic device and a control method are provided. The electronic device includes: a housing with an accommodating space, where the housing is provided with a groove surrounding the accommodating space, and a first dielectric and a second dielectric are disposed on a sidewall of the groove; and a bezel, where at least part of the bezel is disposed in the groove; and the bezel is capable of rotating around an axial direction of the housing in the groove.

An information terminal device according to the present invention is configured to be compact and realizes high-level functionality and/or multi-functionality by drawing out a film-like input/output portion from a casing when used, in a wristwatch type information device or a mobile information terminal device such as a game machine, for example. In addition, a support member supports a back surface of a free end portion side of the input/output portion, the support member is sandwiched between a guide member and a front frame of a casing, and the guide member enables the support member to move into/out from the casing, and supports the back surface of a base end portion side of the drawn-out input/output portion. Accordingly, a support structure that enables reliably performing input/output operations on the film-like input/output portion can be realized. Also, an angle adjustment mechanism is provided between the support member and the casing.

Disclosed is an electronic device. The electronic device includes: a housing including a side wall at least partially configured as an antenna, a first printed circuit board disposed in the housing and including at least one ground part, a second printed circuit board, wherein the second printed circuit board includes an extension part extending along the side wall of the housing, a first part extending from one end of the extension part and connected to the first printed circuit board, and a second part extending from an opposite end of the extension part and electrically connected to the at least one ground part, at least one component disposed on the extension part, and a processor disposed on the first printed circuit board, and operatively connected to the at least one component through the first part of the second printed circuit board.

Disclosed is an electronic device. The electronic device includes: a housing including a side wall at least partially configured as an antenna, a first printed circuit board disposed in the housing and including at least one ground part, a second printed circuit board, wherein the second printed circuit board includes an extension part extending along the side wall of the housing, a first part extending from one end of the extension part and connected to the first printed circuit board, and a second part extending from an opposite end of the extension part and electrically connected to the at least one ground part, at least one component disposed on the extension part, and a processor disposed on the first printed circuit board, and operatively connected to the at least one component through the first part of the second printed circuit board.

A Dewar device for mechanical and/or functional components of a watch, the device being provided with a bracelet and a casing including an enclosure wherein a case of the watch can be disposed so that a crystal of the case is arranged opposite a crystal of all the elements of the casing defining this enclosure and at least one fastening device fastening the watch case in the enclosure of the casing by keeping it remote from all the elements of the casing defining this enclosure, the Dewar device including a device for actuating at least one push button by rotating a pivoting bezel of the casing.

A Dewar device for mechanical and/or functional components of a watch, the device being provided with a bracelet and a casing including an enclosure wherein a case of the watch can be disposed so that a crystal of the case is arranged opposite a crystal of all the elements of the casing defining this enclosure and at least one fastening device fastening the watch case in the enclosure of the casing by keeping it remote from all the elements of the casing defining this enclosure, the Dewar device including a device for actuating at least one push button by rotating a pivoting bezel of the casing.