Product Details: Movement: Japanese Automatic Skeleton 3-Hand Case: 316L Stainless Steel Case Diameter: 50mm Case Thickness: 20mm Lens: Sapphire Lens with Anti-Reflective Coating Strap: Silicone Strap with Buckle Named after Allyn Vine - a renowned geophysicist and oceanographer. Movement: Japanese Automatic Skeleton 3-Hand Case: 316L Stainless Steel Sapphire Lens with Anti-Reflective Coating Water Resistance: 30 ATM Skeleton Design: Shows off the intricate internal mechanisms, offering a captivating view of the watch mechanism and craftsmanship, appealing to enthusiasts and collectors. Limited Edition: Designed as a limited edition, ensuring exclusivity and collector potential for buyers looking for unique watches that stand out and retain their value over time. 051/300 Silicone Strap: Provides comfort and durability, making it suitable for an active lifestyle, while ensuring a stylish look, seamlessly blending functionality and fashion.