SPECIFICATIONS Calibre No.E168 Maximum run time from full charge (Normal Use Condition)Approximately 6 months MovementEco-Drive Signal ReceptionWithout Radio Reception Function StrapSynthetic Rubber Strap Water ResistantWater Resistant to 200m Thickness14.3mm Case Size 45.8mm CaseTitanium Surface ProcessingDuratect MRK + DLC GlassCrystal Glass Warranty3 years warranty Specification Super Titanium Duratect DLC (Diamond Like Carbon) Date Display Eco-Drive (recharged by any light source, no need for regular battery replacement) Insufficient Charge Warning Function Overcharge Prevention Function With Synthetic Rubber Strap & Extension Strap