Excellent example of Seiko 5 7S26 8760. Very good condition overall. 38mm without crown watch diameter. 42mm from lug to lug All original parts. Every function of the watch works perfect. The Seiko 7S26 movement is a mechanical, automatic movement used in Seiko watches. It is part of Seiko's "7S" series of movements, which includes several different calibers used in Seiko watches over the years. The Seiko 7S26 movement is a relatively simple movement, with basic timekeeping functions, including hours, minutes, and seconds, day in week and a date function.