Silver-tone stainless steel case with blue rubber strap, fixed silver-tone bezel featuring tachymeter scale around the outer rim. Silver dial equipped with silver-tone hands and luminous index hour markers for enhanced legibility in low light conditions. Analog chronograph functions include three sub-dials displaying 60 second, 60 minute and tenths of a second time intervals. Powered by the Calibre El Primero 3604 automatic movement offering precision chronometry with a 60-hour power reserve. Features scratch-resistant sapphire crystal glass for longevity against impacts, screw-down crown enhancing water resistance up to 100 meters (approx. 330 feet) depth. Includes transparent case back allowing view of the internal mechanics and round case shape measuring 39.5 mm in diameter. Secured by deployant buckle clasp and constructed as a dress watch suitable for formal occasions.