The Seiko SRPJ47K1 is an automatic watch from the Seiko 5 Sports collection, known for its "skeleton style" design which features a semi-transparent dial. 
Key Specifications

• Movement: Automatic with manual winding capacity, Caliber 4R36 (Japan Made)
• Power Reserve: Approximately 41 hours
• Jewels: 24
• Case Material: Stainless steel
• Case Dimensions:
  • Diameter: 42.5 mm
  • Thickness: 13.4 mm
  • Lug-to-lug length: 46.0 mm
• Band Material: Stainless steel with a three-fold clasp with push button release
• Lug Width: 22 mm
• Crystal: Hardlex mineral crystal
• Water Resistance: 10 bar (100 meters / 330 feet), suitable for daily wear and swimming, but not diving
• Dial Color: Transparent brown/orange (skeleton style)
• Bezel: Unidirectional rotating bezel
• Case Back: See-through and screw-down case back
• Functions:
  • Day and date display at the 3 o'clock position (English and Spanish day indicator)
  • Stop seconds hand function (hacking)
  • LumiBrite on hands and indexes