The Seiko SRPH63K1 is a limited-edition watch created as part of the Seiko 5 Sports collaboration with the Japanese anime series One Piece, featuring the character Trafalgar D. Water Law. This automatic timepiece has a white dial with black markings inspired by the character's hat, along with a black silicone band. Only 5,000 pieces were produced worldwide. 

Technical specifications

• Movement: Automatic with manual winding capacity, Caliber 4R36.
• Case:
  • Material: Stainless steel.
  • Diameter: 42.5mm.
  • Thickness: 13.4mm.
  • Length (lug-to-lug): 46mm.
  • Caseback: Screw-down and see-through, with a black PVD finish and engraved limited edition serial number.
• Crystal: Hardlex.
• Band: Silicone strap with a pin buckle clasp.
• Water resistance: 10 bar (100 meters), suitable for swimming but not for scuba diving.
• Power reserve: Approximately 41 hours.
• Frequency: 21,600 vibrations per hour (6 beats per second).
• Jewels: 24.
• Luminosity: LumiBrite on hands and indexes for improved visibility in the dark.
• Bezel: Unidirectional rotating bezel.
• Weight: 103g.
• Functions: Day/Date display and a stop-second-hand function.
• Special features: The watch features design elements inspired by the One Piece character Trafalgar D. Water Law, including the pattern from his hat on the dial, a mark hinting at his middle initial "D" at the 6 o'clock position, and the pattern from his sword on the crown.