Highlights

• The world's first luminous smart watch: KAVVO Oyster Urban Watch is the world's first smart watch that uses luminous technology, which can be more convenient to time in dark environment. The ingenious surface design and blue luminous decorative effec
• Handmade stainless steel and magic crown: SUS316 stainless steel undergoes more than 30 processes, and is finally polished and filled manually by a watchmaker.
• The leather mixed strap has the functions of anti-tension, anti-scratch, bacteriostasis and perspiration. It can prevent the damage of most natural water bodies (sweat, seawater, pool water, rainwater, muddy water).
• More than 20 exercise modes are available, and the duration of each exercise, heart rate and calories burned are recorded. Heart rate, blood oxygen and sleep are monitored in real time for 24 hours to pay attention to your health problems in real tim

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