Blue Wave Chronometer, LIMITED & NUMBERED EDITION OF 350 pcs. Luminous Hands & Hours Markers, Oversized Seconds Sub-Dial at the 6 o'clock position, Power Reserve Indicator at the 12 o'clock position, Magnified Date at the 6 o'clock position, Sapphire Crystal,Sapphire Crystal Case Back - viewable movement, movement is mostly heated blue material. COSC Certified Chronometer.