Caliber: Y676  SEIKO SII 7S26 Automatic Movement, 21 Jewels Made in Japan  
A window at the 3 o'clock hour reveals the automatic day calendar.
Metal: Stainless steel case back
Band: Silicone strap
Water resistance : 100m / 10bar
Glass: Hardlex crystal
Case Size : 43mm
Case Thickness: 12.8mm
Dial: Blue