CASIO G-SHOCK - The Gulfmaster is definitely a favourite of ours! Get the full specs of this leviathan of a watch here www.g-shock.co.uk/product/GWN-1000B-1BER | Facebook
User manual Casio G-Shock GWN-1000B-1BER (English - 15 pages)
The most convenient triple sensor G-Shock | GWN-1000 Gulfmaster 2020 revisit - YouTube
Amazon.com: Casio G-Shock GWN1000B Master of G Series Quality Watch - Black / One Size : Clothing, Shoes & Jewelry