Watch Wiki

The Seiko 9S family includes three ranges of watch movements:

• The initial 9S5x and 8L range introduced in 1998 and running at 28,800 A/h
• The "Hi-Beat" 9S8x range introduced in 2009 and running at 36,000 A/h
• The "3 Days" power reserve 9S6x range introduced in 2006