Accuracy: ±10 seconds/year, Photovoltaic: 5 months, Water resistance: Waterproof for daily use Glass: Sapphire glass (anti-reflective coating), Case: Super titanium, Band: Super titanium Additional specifications: Nickel-resistant Item Shape: Round Details: With a thin 6mm case and a high precision of ±10 seconds per year, this elegant model has a unique presence. This is a dress watch with a 6mm thick case, Eco-Drive and an annual difference of ±10 seconds. The Cal.G530 is only available in the Exceed series. The all-Roman numeral indexes express the elegant worldview of EXEED. The multi-row metal band gives the watch the elegant look of a dress watch.