- Brand: Seiko
- Series: Prospex
- Reference: SPB313J1
- Case Size: 41 mm
- Dial : White sunburst with LumiBrite on hands and indexes
- Crystal: Curved sapphire with anti-reflective coating on inner surface
- Material: Stainless steel (super hard coating)
- Bracelet: Stainless steel bracelet.
- Water Resistant: 200m / 660ft diver's
- Movement: Automatic with manual winding capacity
- Caliber: 6R35
- Power Reserve: Approx. 70 hours
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Other Specifications:
- Screw case back
- Screw-down crown
- Three-fold clasp with secure lock
- Unidirectional rotating bezel
- Warranty: 3 year International Warranty