Protecting the display of this watch is a unique sapphire crystal produced internally by OMEGA, using a specific process called EFG. “Edge-defined Film-fed Growth” creates a crystal that is absolutely defect free, to make the most of sapphire’s unique properties. Sapphire plates are grown, using the EFG process, then cut into discs, machined and polished, to create sapphire crystals of extraordinary strength and clarity, ensuring an unhindered vision of the display at all times.
Protecting the display of this watch is a unique sapphire crystal produced internally by OMEGA, using a specific process called EFG. “Edge-defined Film-fed Growth” creates a crystal that is absolutely defect free, to make the most of sapphire’s unique properties. Sapphire plates are grown, using the EFG process, then cut into discs, machined and polished, to create sapphire crystals of extraordinary strength and clarity, ensuring an unhindered vision of the display at all times.
歐米茄Master Chronometer腕表經過雙重測試及認證。首先，機芯經瑞士官方天文台（Official Swiss Chronometer Control, COSC）測試後，根據國際標準ISO3159進行天文台表認證，精確度偏差為每日-4/+6秒。然後，表頭和機芯必須通過瑞士聯邦計量科學研究所（Swiss Federal Institute of Metrology, METAS）認可的八項嚴謹Master Chronometer測試，精準度偏差為每日0/+5秒。
歐米茄Master Chronometer腕表經過雙重測試及認證。首先，機芯經瑞士官方天文台（Official Swiss Chronometer Control, COSC）測試後，根據國際標準ISO3159進行天文台表認證，精確度偏差為每日-4/+6秒。然後，表頭和機芯必須通過瑞士聯邦計量科學研究所（Swiss Federal Institute of Metrology, METAS）認可的八項嚴謹Master Chronometer測試，精準度偏差為每日0/+5秒。
