Seiko 5 Automatic 21 Jewels SYMD91 SYMD91K1 SYMD91K Women's WatchSeiko 5 Automatic 21 Jewels SYMD91 SYMD91K1 SYMD91K Women's Watch This daily beater looks good without the cost going through the ceiling. The Seiko 5 model runs on a twenty one jewel, self winding automatic movement, which is a fairly typical feature of the Seiko 5 line. In other aspects as well, it holds on to the Seiko 5 characteristics, from its size to its Hardlex mineral glass crystals for both the face and display back.