My Casio W-700. I bought it to wear as a work watch. Now I can't take it off. I just love this little ugly watch. Very light and slim ,yet very robust. :
Casio Vintage Super Slim Series Watch A700WM-7A
Vintage Casio AQ-E10 Module 2384 ANALOGIC & Digital Chronograph Watch ULTRA SLIM | eBay
Restored: Casio's thinnest digital watch (3.75mm). : r/casio
This Ultra-Thin, Affordable Chronograph Watch Packs Tons of Practical Tech