EF550D-1A

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 Face design in the image of the engine cover Case / bezel material: Stainless steel Solid Band Stainless Steel Band Double-lock, 1-press, 3-fold Clasp Screw Lock Back Retrograde dial Mineral Glass Screw Lock Crown Partial ion plated 100-meter water resistance Read Less