The FS4487 sports a 45‑mm stainless steel case coated in black, anchored by a knurled bezel and paired with a black silicone strap. Powered by a quartz chronograph movement, it includes a mineral glass dial and offers 5 ATM (≈50 m) water resistance. The strap width is 24 mm and uses battery type SR920SW. https://saicreationswatches.com/products/fs4487-fossil-machine-chronograph-analog-watch-for-men