CASE Material Grade 5 brushed-polished titanium Diameter 47 mm (excluding the crowns) Thickness 22 mm Crown at 3 o’clock Adjusts date by pressing the push-button Crown at 9 o’clock In position 1, it winds the movement, In position 2, it adjusts the time. Glass Anti-reflective sapphire crystal glass on dial Bezel Titanium bezel with satin-finish surface, rounded and mirror-polished edges, secured with customized screws Case back Full case back closed with customized screws, reproduction of the coin first minted during the reign of Cyrus the Great Water-resistance 3 ATM (30 m - 100 ft) STRAP Material Black alligator leather Clasp Folding customized clasp DIAL Red lacquered hour arch, luminescent Arabic numerals, red lacquered display with “Phases of Mars” reproduction Red and white lacquered cubes composing the rotating retrograde hour hand, rounded and polished edges Two concentric red lacquered discs for minutes and seconds indication Central fixing point with red lacquered Cyrus logo Grooved silver matt arch as date window Static units, engraved and filled with white lacquer Rotating retrograde cube for the tens, engraved and filled with white lacquer 7.6 mm three-dimensional spherical red lacquered planet Mars. The planet makes a complete rotation in 24 hours, 37 minutes and 22 seconds FUNCTIONS Retrograde hours over a 180° arch Minutes and seconds on central concentric discs Day/night indication Spherical rotating planet Mars Large retrograde date display MOVEMENT Calibre In-house manufactured shaped self-winding winding movement, calibre CYR598 Number of components 390 Number of jewels 40 Frequency 4 Hz Vibrations per hour 28.800 Balance Wheel Annular balance wheel Patents Patented mechanism for regulating the speed of the retrograde hour, minute and second wheels and the day/night indication Patented retrograde calendar Power reserve 40-hour Oscillator Oscillating mass on ceramic ball bearings without lubrication