Nixon sentry chrono watch blackdown to businessdesigned for distinction the sentry chrono fits into business or pleasure this revamped original boasts a new six hand chronograph movement and 24 hour subdial for precision stylemovement miyota japanese quartz 6 hand chronograph with a 24hr subdial and date placement at 4 hourdial the dial features faceted applied indices printed seconds track and custom molded handscase 42mm 100 meter10 atm custom solid stainless steel case hardened