Seiko Chronograph 100M Black Bezel SNDF41 SNDF41P1 SNDF41P Men’s Watch

This is a battery-powered Seiko but fear not, it runs for a l-o-o-o-n-g time. Its medium-large diameter and not too-thick case makes it easily concealable under the sleeves and the cuffs. It’s also very light despite the solid build, so you can wear it all day round. The color combo makes it attractive enough to wear it everywhere you like, except for in very formal events.