Casio Edifice EF-550D-7AV

1/20-second chronograph

Tachymeter

A rotary dist at 3 o'clock to indicates the 24-hour

Fast-moving retrograde dial at 6 o'clock

100-meter water resistance

Stainless steel case and band

Face design in the image of the engine cover



Partial ion plated

Retrograde dial

Mineral Glass

Tachymeter

Screw Lock Crown

Screw Lock Back

100-meter water resistance

Case / bezel material: Stainless steel

"Double-lock, 1-press, 3-fold Clasp"

Stainless Steel Band

Solid Band

1/20-second stopwatch

Measuring capacity: 59'59.95''

Measuring mode: Elapsed time

Date display

Regular timekeeping

Analog: 3 hands (hour, minute, stopwatch seconds)

3 dials (timekeeping 24-hour, timekeeping second / stopwatch 1/20 second, stopwatch minutes)

Accuracy: 20 seconds per month

Approx. battery life: 2 years on SR927W

Size of case: 50.8 45.1 12.1 mm

Total weight: 181 g.