Seiko 8R28 Manual - Page 13

English SPECIFICATIONS 1 Display system Time/Calendar Hour, minute and small second hands Date is displayed in numerals Stopwatch Measures up to 12 hours Stopwatch hour, Stopwatch minute and Stopwatch second hands 2 Vibrations per hour 28,800 3 Loss/gain (daily rate B e t w e e n + 2 5 a n d -15 s e c o n d s a t n o r m a l temperature range (between 5 °C and 35 °C or between 41 °F and 95 °F) 4 Continuous operating time More than approx. 45 hours 5 Driving system Automatic winding type with manual winding mechanism 6 Number of jewels 34 jewels • The accuracy above is factory adjusted. • 24 Due to the characteristics of mechanical watches, any actual daily rate may not fall within the range of time accuracy specified above dependent on the conditions of use, such as the length of time during which the watch is worn on the wrist, temperature, arm movement, and whether the mainspring is wound up fully or not, etc.