Casio Calculator Alarm Stopwatch Dual Time Watch CA-53W-1Z CA53W

Casio Calculator Alarm Stopwatch Dual Time Watch CA-53W 1Z CA53W

Stainless steel case back, rubber case and strap

Specifications:

Accuracy at normal temperature: ± 15 seconds a month

Regular timekeeping
Hour, minute, second, am/pm, year, month, date and day... on its double display
Time system: Changeover between 12/24 hour formats
Calendar system: Auto-calendar pre-programmed to the year 2079

Calculator mode
8 digits (7 digits for negatives)
Abilities: Four basic calculations, chain & mixed operations, constants for + / - / x / ÷, power calculation
Decimal point: Full floating with underflow
Overflow check: Indicated by the "E" sign, locking the calculator mode

Stopwatch mode
Measuring capacity: 23 hours, 59 minutes, 59.99 seconds
Measuring unit: 1/100th of a second
Measuring modes: Normal time, net time, lap time and 1st-2nd place times

Dual time mode

Daily alarm mode

Hourly time signals

Battery:
(Module No. 437)
One lithium battery (Type: CR-2016)
Approx. 5 years of operation on type CR-2016 (Includes the alarm for 20 seconds and calculation for 1 hour per day)