Automatic mechanical movement, Calibre El Primero 400B with 31 jewels and column wheel. Analog display features a silver-tone dial, rose gold-tone hands, index hour markers (likely Roman numerals), tachymeter scale on the outer rim, and luminescent accents for night readability. Date function visible at the 4 to 5 o'clock position window. Chronograph sub-dials show hours/minutes up to 12 hours, minutes up to 30 minutes, and seconds (including small second). Includes fixed rose gold bezel and sapphire crystal glass with scratch resistance. Standard push/pull crown operation and transparent case back. Round case measuring 38 mm in diameter and 12.45 mm thick is available in silver-tone finish. Accompanied by an 18 karat rose gold bracelet strap which fits a band width of 19 mm. Water resistant to 30 meters (approximately 100 feet). Swiss made, luxury men's watch.