Seiko Prospex Diver's Coastline 41.3mm watch SPB485J1

The Seiko Prospex Diver’s 300m Coastline 41.3mm SPB485J1 combines elegance with durability, powered by a Calibre 6R55 automatic movement with a 72-hour reserve. Its stainless steel case features a pink unidirectional bezel, and the black dial displays a serene coastline pattern beneath anti-reflective sapphire crystal. Lumibrite-coated hands and indexes offer clear readability, while the 300m water resistance ensures dive-ready reliability. The polished stainless steel bracelet with secure clasp makes it perfect for both business and leisure.

Movement

• Caliber Number 6R55
• Movement Type Automatic with manual winding
• Precision +25 to -15 seconds per day
• Power reserve Approx. 72 hours(3 days)
• Jewels 24

Functions

• Stop second hand function
  

Case/Band

• Case Material Stainless steel
• Case Size
• Thickness:12.5mm
  Diameter:41.3mm
  Lug-to-lug:48.2mm
• Crystal Sapphire crystal
• Crystal Coating Anti-reflective coating on inner surface
• LumiBrite LumiBrite on hands, index(es) and bezel
• Clasp Three-fold clasp with secure lock , push button release with extender
• Distance between lugs 20

Other Details

• Water Resistance 300m / 1000ft diver's
• Magnetic Resistance 4,800 A/m
• Weight 179.0g
• Features
• Unidirectional rotating bezel
• Screw-down crown
• Screw case back