Oceanus - Mantra Chrono - Japanese made quartz module: 4766 movement. Multi-band atomic timekeeping (us, uk, germany, japan) - auto receivees time calibration radio signals up to 6 times per day - manual receive function signal: us wwvb, uk msf, germany dcf77, japan jjy40/jjy60 frequency: us 60khz,uk 60khz, germany77 5khz, japan 40/60khz. tough solar power - rechargeablebattery. World time in 29 times zones and 27 cities. 1/20 secondChronograph . Titanium combination polished & satin finish case. Highly polished finish Tachymeter scale bezel. Sapphire flat profile crystal. Black color luminous 5 minute dots/markers dial. Luminous filled hands. Screw-on with screws style raised logo/engraved case back. Titanium combination polished and satin finish band. Sport style with spring release factory logo clasp. 50 meters water resistance. 47 00mm x 43 00mm x 10 00mm case size. Three years limited factory warranty.