EF-521GF-7AV

Partial ion plated

EF-524GF-7AV

Partial ion plated

EF-535GF-7AV

Partial ion plated

Package

EF-521GF

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1-second stopwatch
Measuring capacity: 29'59
Measuring mode: Elapsed time

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Date display

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Regular timekeeping

Analog:	3 hands	(hour, minute, stopwatch seconds)
Analog:	3 dials	(second, stopwatch minutes, day)

•	Accuracy: ±20 seconds per month
•	Approx. battery life: 2 years on SR626SW
•	Size of case / total weight 48.0 X 43.3 X 12.4 mm / 170 g

EF-524GF

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1-second stopwatch
Measuring capacity: 11:59'59
Measuring mode: Elapsed time

•

Date display

•

Regular timekeeping

Analog:	3 hands	(hour, minute, stopwatch seconds)
Analog:	3 dials	(second, stopwatch hours and minutes)

•	Accuracy: ±20 seconds per month
•	Approx. battery life: 2 years on SR927W
•	Size of case / total weight 48.0 X 43.4 X 10.9 mm / 173 g

EF-535GF

•

1-second stopwatch
Measuring capacity: 29'59
Measuring mode: Elapsed time

•

Regular timekeeping

Analog:	3 hands	(hour, minute, second)
Analog:	3 dials	(stopwatch minutes and seconds, 24-hour)

•	Accuracy: ±20 seconds per month
•	Approx. battery life: 2 years on SR621SW
•	Size of case / total weight 50.6 X 45.5 X 13.7 mm / 182 g