TUDEIKO Chrono Racing Black

• Case Size: 40 mm
• Case Thickness: 12 mm
• Glass: Sapphire
• Wrist Size: Universal (adjustable)
• Case Material: Stainless steel
• Strap Material: Stainless steel
• Movement: Seiko VK63 Hybrid (Quartz + Automatic)
• Water Resistance: 10 ATM (resistant to splashes, rain and swimming)
• Backside: Transparent case back

Movement:

• Manufacturer: Seiko Instruments 
• Model: VK63 Hybrid
• Movement Type: Mecha Quartz
• Power Reserve: 41+ hours