Timex's Marlin® Chronograph Tachymeter Watch is powered by a quartz movement. This beautifully detailed watch features a tachymeter index along its outer minute track to measure speed, as well as a unique date window placement. It's paired with a supple brown natural leather strap, sourced from the Leather Working Group® (LWG) and complete with quick-release spring bars. This quality timepiece features a sturdy 40mm stainless-steel case, domed acrylic crystal lens, and retro-style applied indices at 3, 9, and 12 o'clock.