Building on the CIGA Design full-hollow form, a strengthened sense of metal and sharp lines, breaking the traditional design concept. Not to be intentionally bold, but to stand out and express our personality. Seize every powerful moment and let them explode on your wrist. With Z series, you can hear the heartbeat of a machine. | Carved from 316L stainless steel ensures life-long durability and superior strength. Utilising surgical-grade materials means you can be assured of sustained quality year after year. | Possessing the exact chemical makeup as natural sapphire, the second hardest known element, the crystal is exceptionally resistant to abrasion and scratches and is the material we use on all of our watch faces. Second only in hardness to diamond, the mirror can withstand a lifetime of use and remain looking exceptional. | A customised SEAGULL automatic movement means it is your drive that powers our watches. Kinetic energy is harnessed from your activities and used to power the mechanical movement. With a power reserve of up to 40 hours, the watch can be left at rest and continue to function. | Food-grade silicone strap with supple flexibility and toxic-free composition. Original sweat-proof bump design provides ergonomic comfort, and the quick-change 'lock-tite' spring bar affords convenient strap attachment and removal.