The Nautis Meridian includes the following features - 316l surgical-quality stainless steel case, seiko vk63 quartz movement, full-function chronograph, non-glare scratch-resistant mineral crystal, logo-engraved stainless steel caseback, rubber strap, logo-engraved stainless steel clasp, super luminova hands, super luminova markers, date indicator, 24-hour sub-dial, seconds sub-dial, 42mm case diameter, 20 ATM water resistance (professional deep diving approved).