Vintage SEIKO 5 Blue 7S26-02C0 Railway Time Automatic Watch | eBay
SEIKO 5 with BOX SNK807K2 AUTOMATIC military WATCH(CAL.7S26C)BLUE nylon strap | eBay
Im planning on upgrading this snkl41. It uses the 7s26c movement. Am I correct in saying I could purchase any NH36a movement with 4oclock crown and it would simply fit right in?