Features:

• Seiko 5 Sports Collection
• Inspired by vintage field/aviator style
• Automatic with manual winding capability
• Black dial
• 60-minute track on the outer dial
• 13-24 hour military time scale on inner dial
• Red-tipped second hand
• Day/date calendar
• Luminous hands and markers
• Screwdown see-through caseback
• Tri fold push-button release clasp

Case Dimensions:

• Diameter: 36.4 mm
• Thickness: 12.5 mm
• Length: 44.4 mm

Movement:

• Caliber 4R36
• 21,600 vibrations per hour
• 24 jewels
• Power reserve: approximately 41 hours

Case: Stainless steel case

Crystal: Curved Hardlex crystal

Water Resistance: 10 bar, 100 meters (330 feet)

Dial color: Black

Strap: Stainless steel bracelet

Model: SRPJ81