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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
Measuring unit: 0
Distance Between Lugs: 19
Useful workout features are supported by an optical sensor for heart rate measurement
◆ Luminous ceramic unidirectional rotating bezel
29 micro gas tubes on hour
Seiko Astron SSH021 GPS Solar Quartz Dual Time Stainless Steel Black Dial g Measuring unit: 0Today, 50 years after the Seiko Quartz Astron ushered in the quartz revolution, the enduring popularity, ubiquity and versatility of this remarkable technology have all been proven beyond any expectation. The Quartz Astron changed the way the world told time, astonishing people with its accuracy of +5 to 5 seconds per month. It also shaped the whole future of the electronics industry as several of its inventions, including the tuning fork shaped