Seiko Prospex Samurai “Ninja” SBDY133 (SRPL15)

Model: SBDY133 (JDM) / SRPL15 (International)
Collection: Prospex Diver Scuba
Made in: Japan
Release Date: July 2024

Caliber: Seiko 4R35
Movement Type: Automatic (with manual winding)
Power Reserve: Approx. 41 hours
Jewels: 23
Frequency: 21,600 vibrations per hour (3Hz)
Functions: Date display, hacking (seconds stop), hand-winding

Case Material: Stainless Steel
Case Diameter: 41.7 mm
Lug-to-Lug: Approx. 49.5 mm
Thickness: Approx. 12–13 mm
Lug Width: 20 mm
Case Back: Screw-down
Crown: Screw-down

Water Resistance: 200 meters (20 ATM, Diver’s standard)

Crystal: Hardlex
Dial Color: Black (Stealth “Ninja” theme)
Lume: LumiBrite (hands, markers, bezel)

Bezel: Unidirectional rotating bezel (anti-reverse)

Strap: Black silicone/rubber
Clasp: Buckle

Additional Features: Magnetic resistance, lightweight (~88g), updated slimmer Samurai case design