Saturday watch illustration. today with a more obscure design that I find pretty neat for its purpose: The Casio tri-10W. There is not much info about this piece but from my point
VINTAGE CASIO TRI-10W WATCH TRISPORTS DIGITAL ANALOG Watch New battery - Works | eBay
Casio Part - Rare Original Case Mod. TRI-10W TRISPORTS QW-721 - Vintage | eBay
Vintage CASIO SPORT TRI-10W- Qw 721 Japan, WR.164ft Year 1991 | eBay