80's Retro CASIO DW-310 HD ( means Heavy Duty)
Well-loved watch, Very useful, practical and very tough
100% working, no defect, no issue whatsoever.
Last 300M large-size thin watch from CASIO 
Clint Wastwood 1982
40mm x 45mm lug to lug: Module:690 Made in Japan
0915-2557815
McDonalds Visayas Ave, KFC Mindanao, McDonalds Tandang Sora
Eton Centris MRT Quezon Ave Station, Waltermart LRT Roosevelt Station
S&R Membership Shopping Munoz Project 8, Chowking Caltex Trinoma
PhiSci Agham Road, East Avenue, McDo West Avenue, UP Diliman, QueSci
Cherry Foodarama, PHILCOA and MiniStop Edsa Project 7 SM City ONLY
Thanks Sulit! Good Day & God Bless :)