50th Anniversary Edition. Ice blue dial. Dial diameter: 40 mm. Index hour mark. Chestnut brown monobloc Cerachrom ceramic bezel. Large central chronograph seconds hand. 30-minute chronograph subdial at 3 o’clock. 12-hour counter at 9 o’clock. Small seconds subdial at 6 o’clock. The bezel is engraved with a tachymeter scale. 72-hour power reserve self-winding automatic movement. Mirror material: scratch-resistant sapphire crystal glass. Waterproof: 100 meters/330 feet. Functions: hours, minutes, seconds, chronograph.