LF-20W-1A , LF-10WH-1

LF-20W-1A

Case / bezel material : Resin
Bio-based Resin Band
Resin Glass
Water Resistant
LED light
World time
Multi Time (4 different cities)
World time 31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
Timer
Countdown timer Measuring unit: 1/10 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
Stopwatch
1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times
Daily alarm
Hourly time signal
Full auto-calendar (to year 2099)
12/24-hour format
Regular timekeeping: Hour, minute, second, pm, date, day
Accuracy: ±30 seconds per month
Approx. battery life : 3 years on CR1616
Size of case : 37.8 × 33.7 × 8.6 mm
Compatible band size : 125 - 200 mm
Total weight : 23 g

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LF-10WH-1

Case / bezel material: Resin
Resin Band
Resin Glass
Water Resistant
LED light
1/100-second stopwatch
Measuring capacity: 59'59.99"
Measuring mode: Elapsed time
Daily alarm
Hourly time signal
Full auto-calendar (to year 2099)
12/24-hour format
Regular timekeeping: Hour, minute, second, pm, date, day
Accuracy: ±30 seconds per month
Approx. battery life: 2 years on CR1216
Size of case : 40.8 × 24.1 × 9.1 mm
Total weight : 18 g