Calibre No.H800 Maximum run time from full charge (Normal Use Condition)Approximately 6 months MovementEco-Drive Signal ReceptionGlobal Radio-Controlled StrapStainless Steel Water ResistantWater Resistant to 20 bar Weight179g Thickness11.6mm Case Size 43.1mm CaseStainless Steel Surface ProcessingTwo-Tone, IP Black GlassSapphire Glass Warranty3 years warranty Specification 24hrs, Date and Day Display Chronograph Eco-Drive (recharged by any light source, no need for regular battery replacement) Insufficient Charge Warning Function Overcharge Prevention Function Perpetual Calendar Power Reserve Level Indication Global Radio-Controlled 26 Cities World Time