Montblanc StarWalker Extreme Doue Ballpoint Pen JewelleryGradGift Features Movement: U680†Eco Drive Case Size: M2840D1A0 0004 Features Movement: U680†Eco Drive Case Size: 45mm Water Resistance: 20†bar (200†metres) Dial Colour: Blue Synchronized to Atomic Clock for Superior Accuracy Atomic Timekeeping Technology with Synchronized Time Adjustment Available in 43 World Cities 1 100 Second Chronograph Measures up to 24 Hours Perpetual Calendar†Dual Time (Second Time Zone) 2 Alarms 99 Minute Countdown Timer Digital Backlight Display Coordinated Universal Time (UTC) Display Power Reserve Indicator The pen comes with an 18 carat gold nib coated in rhodium Au750 creates a cohesive link with our "Extreme" leather goods collections Barrel Description: Barrel made of black precious resin with "Extreme" pattern