Previously, there was a watch series called Type II in SEIKO’s lineup. The design was not overly decorative so as not to affect the function, and as a product had a sophisticated air to it. The design was very gracious and had a major presence. The modern version of Type II is Type III.
What determines the impression of the model is its simple edgeless structure, with the glass and case both being flat and on a line with each other. Taking into consideration the volume suited to modern senses while maintaining this structure, the size of the entire watch was first increased. To accommodate arm circumference more comfortably, the shape of the back plate, fixed with four screws, echoed that of the case, a shape that bucked the round norm (the original had a back that was screwed on). A fixed system was adopted for the fitting portion with emphasis on the continuity of the case and band. A metal bracelet consisting of separate parts was used for the band so that the mirror and crease could easily be finished and separated. Ease of production directly leads to improvements in texture.

A two-step dial ring was employed, and the hands and scale were brought close together. The shape of the bar at 12 (o’clock) differs from that of the others, a technique in keeping with the psychology of people who read time using the abbreviations, and which is widely used for watches in general. Luminescent paint has been applied to the hands and abbreviated numbers so that they can be seen even in dark places.