In this paper, as one of our CAE approaches, we will report fluid analysis results on the water filling process of a depth gauge installed in a divers watch. The analysis was conducted by applying boundary conditions, assuming a sudden water entry during boat diving. As a result, we found that an L-shape in the flow path will easily trap air bubbles. Such CAE approach to predict the behavior of the water flow beforehand contributes to our efforts toward a front-loading design method.

  Casio developed the high sensitivity GPS antenna which adopted a bezel of the watch as part of antenna and the high-definition and low power consumption display system which is capable of solar driving. Thanks to this development, the watch which has usability as a conventional watch and advanced functions including GPS tracking has been realized and the positioning of the watch has been expanded.

  We have developed a multifunctional GPS watch which provides automatic time adjustment, altimeter, barometer, compass and unique navigation features. In addition, this watch is equipped with Bluetooth low energy (BLE) function and can extend sensing function by using BLE. The low power consumption design allows the watch to be powered by solar cells. This report gives a technical overview.

  CASIO Corporation has developed "GBA-800" as a "G-SHOCK" brand watch targeted at the scene and fashion like athleisure. In order to realize a more practical product sports watch, we have developed an algorithm that enables low-power implementation of a function that constantly measures the number of steps and determines exercise intensity using an accelerometer. And a dedicated smartphone application enables easy management of daily exercise intensity. This paper explains the technical summary of the development of GBA-800.

  One of the prestigious watch & jewelry exhibitions ‘Basel world 2019’ and some watch museums were surveyed in conjunction with design-oriented ones for aiming at combination design engineering with product design. Watches as precious products show varieties of shape, color, motion, material and so on. This trend is followed by other categories such as architecture and furniture. For students studying either engineering design or product design, it is suggested that they should visit the actual scene, see real products and capture many kinds of many kinds of examples.