IWC Pilot’s Watch Performance Chronograph Perpetual Calendar Digital Date-Month IW502618 blends aviation heritage with high-performance materials and a complex perpetual-calendar chronograph movement. 万国飞行员系列高性能计时万年历数字日期月份腕表 IW502618 将飞行传统、高性能材质与复杂万年历计时机芯融为一体。 Its 43 mm Ceratanium case and bracelet are lightweight, scratch-resistant and durable, while the polished black ceramic bezel carries a tachymeter scale. The black hammered dial shows a flyback chronograph totalizer at 12 o’clock, with large golden digital discs for the date at 9 o’clock and the month at 3 o’clock, plus a leap-year indicator. The perpetual calendar is fully adjustable via the crown, and the watch is water-resistant to 10 bar, about 100 metres. 43 毫米瓷化钛金属表壳与表链轻盈、抗刮且坚固，抛光黑色陶瓷表圈配备测速计刻度。黑色­锤纹表盘在 12 点位设有飞返计时盘，9 点位和 3 点位分别以金色数字盘显示日期和月份，并配有闰年显示。万年历可通过表冠完整调校，­防水性能达 10 巴，约 100 米。 Inside beats the IWC-manufactured 89802 automatic movement, offering 68 hours of power reserve, a small hacking seconds display, and a tinted sapphire caseback that reveals the blackened bridges and skeletonized rotor. Finished in black and gold, this model feels both technical and luxurious, suited to collectors who value innovation, legibility and pilot-watch character. 内部搭载万国自制的 89802 型自动机芯，提供 68 小时动力储存，配备小秒针停秒功能，并通过 tinted 蓝宝石水晶表背展示熏黑夹板与镂空摆陀。黑金配色使这枚腕表兼具科技感与奢华气质，­适合重视创新、易读性与飞行员风格的收藏者。