MECHANICAL
Mechanical Open-Heart Movements With a Free Self-Winding Spirit, Encompasses The Skeleton And Ever-Classic Automatic.
Withstands Pressures up To 50 Meters depth
Highly Water Resistant , Swim Deep Wearing Your Skeleton Time Piece.
Sapphire Glass, Anti-Reflective Coating
Synthetic Sapphire, Extremely Strong and Excellently Resistant To Scratches.
Seiko Caliber NH70A Watch Movement
Skeletonized Open Heart 24 Jewels Automatic Caliber.