Zenith Chronomaster XXT Open Grande Date Moon & Sunphase 45MM Stainless Steel Silver Dial Black Leather Strap 03.1260.4047/02.C505 VYNJUL Silver Dial with fine guilloche textured center. Unique cutaway in the dial exposes the heart of the movement - the escapement beating at 36,000 Vibrations per Hour. Applied polished steel arrow shaped index & roman numeral hour markers. Polished steel dauphin shaped hands. The Famous El Primero Chronograph stop/watch: Large central seconds counter hand. 30 minute sub-dial counter located at the 3 o'clock position. Running seconds sub-dial at the 9 o'clock position , set into part of the cutaway display. Moon & Sun-phase sub-dial is located at the 6 o'clock position. Large date at the 2 o'clock position. Unique & patented 3-disc Grande Date system, surrounded by a translucent and unbreakable material, the result of space research, making it seem as though the numerals are floating Powered by the famous El Primero Caliber 4047, beats at 36,000 vph, contains 41 jewels, composed of 332 components & has an approximate Power Reserve of 50 hours.