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什么是天文台腕表？
天文台腕表是获得认证的高精密时计，满足C.O.S.C（瑞士官方天文台/Swiss Office for Chronometric Controls）最严格的标准。每个机芯都在5个位置、3个温度，并在极端苛刻的运转条件下经过15天的测试。为获得天文台腕表认证，机械机芯（不管是自动还是手动）都必须满足ISO 3159规定及C.O.S.C要求的7大标准。不管外部条件如何，它都必须保证每天-4/+6秒的精准度。