Seiko Prospex SPB381J1 ‘Marine Green’ GMT

🔹 Design & Build
Case Size: 42.0 mm
Case Thickness: 12.9 mm
Dial Colour: Green
Strap Type: Stainless steel (hard coating) Bracelet
Crystal: Sapphire
Finish: Stainless steel (Super Hard Coating)
Clasp: Three-fold clasp with secure lock, push button release with extender
Case Material: Stainless steel (Super Hard Coating)

🔹 Specifications
Brand: Seiko
Series: Prospex
Model / Code: SPB381J1
SKU: SPB381J1
Gender: Men's
Warranty: 3 Years Warranty
Movement: Automatic with Manual Winding
Power Source: Automatic Mechanical
Water Resistance: 20 bar
Strap Material: Stainless Steel
Case Material: Stainless steel (Super Hard Coating)
Dial: Analog Display
Function: 24-hour hand (dual time display function)
Caliber: 6R54
Power Reserve: 72 Hours
Accuracy: -15/+25 seconds per day
Lug-to-Lug: 48.55 mm
Lug Width: 20.0mm
Luminous Detail: Lumibrite on hands, indexes and bezel
Additional Features: Specifications; Screw-down crown; LumiBrite:Lumibrite on hands, indexes and bezel; Other Specifications: Screw-down crown

🔹 Key Features
🕒 Automatic with Manual Winding movement (Caliber 6R54)
✨ Specifications
💎 Sapphire crystal
⌚ 42.0 mm stainless steel (super hard coating) case
🔒 Stainless steel (hard coating) Bracelet
📅 24-hour hand (dual time display function)

🔹 In the Box
✔️ Seiko SPB381J1 Watch × 1
✔️ Original Seiko Presentation Box × 1
✔️ Official Seiko Warranty Card × 1

💡 Why Choose This Model?
✅ Seiko SPB381J1 from the Prospex collection
✅ Green dial with a 42.0 mm case
✅ Automatic with Manual Winding movement (Caliber 6R54)
✅ Stainless steel (hard coating) Bracelet
✅ Stainless steel (Super Hard Coating) case with Sapphire
✅ 20 bar water resistance
✅ Backed by a 3-year warranty