casio qs 17 three button seiko 0662-5009

hi i have a very nice casio qs 17 i dont know the battery size . whats the best cells for these and size to use thanks. also a very clean seiko 1975 0662-5009 what size cells again and the best to use

[Seiko&Casio Lcd's]

Casio qs-17 = 392 battery
Seiko 0662 = 386 battery

Best to use is a name brand like, varta, renata,seiko,maxell , ect.

thank you very much i will get varta or retna for them both as there very nice watches