Casio Edifice Men's Watch ECB 2300D 1A Mineral Glass Stainless Steel Band Mobile Link Bluetooth Tough Solar G SHOCK MUDMASTER & MASTER OF G 000 woven carbon fibers Couple Valentino 61610 Women's 000 woven carbon fibers Measuring unit: 1 second Countdown range: 60 minutes Countdown start time setting range: 1 second to 60 minutes (1 second increments) battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge) 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) App connectivity feature