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AT A GLANCE
Styled with an engine motif, the EF550PB-1AV is equipped with stacked sub-dials, which are strategically covered for enhanced legibility and a dynamic look. The sub-dial at the 3 o’clock position is designed to resemble a racing wheel. Armed with a 1/20th second retrograde chronograph, the second hand alternates between clockwise and counter clockwise motion during timed measurements.
1/20-second chronograph
Tachymeter
A rotary disk at 3 o’clock to indicate 24-hour
Fast-moving retrograde dial at 6 o’clock
100-meter water resistant
TECHNICAL SPECS
100M Water Resistant
Retrograde 1/20 second chronograph
Measuring capacity: 59:59’59”
Measuring mode: Elapsed time
12/24 Hour Formats
Tachymeter
Date Display
Mineral Glass
Screw Lock Crown
Screw Lock Back
Resin Band
Stainless Steel IP Case
Stainless Steel IP Bezel
Accuracy: +/- 20 seconds per month
Battery: SR927W
Approx. battery life: 2 years
Module: 5147
Size of case / total weight
EF550PB 50.8 x 45.1 x 12.1mm / 100g