SPB143J1
A modern re-interpretation of Seiko’s legendary 1965 diver’s watch, the Prospex SPB143J1 delivers robust performance with vintage flair. Its 40.5mm stainless steel case, protected by a super hard coating and curved sapphire crystal, strikes a balance between heritage design and contemporary engineering.
Powered by the reliable 6R35 automatic movement, this diver’s watch offers up to 70 hours of power reserve and water resistance up to 200 meters. The black dial with LumiBrite accents, a unidirectional bezel, and screw-down crown makes it an essential timepiece for both underwater exploration and everyday wear.
Movement
Caliber: 6R35
Movement Type: Automatic with manual winding
Accuracy: +25 to -15 seconds per day
Power Reserve: Approx. 70 hours
Jewels: 24
Functions:
Stop seconds hand function
Date display
Case
Case Diameter: 40.5 mm
Case Thickness: 13.2 mm
Case Length (Lug-to-lug): 47.6 mm
Lug Width: 20 mm
Case Material: Stainless steel (Super Hard Coating)
Crystal Type: Curved sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
Bezel: Unidirectional rotating bezel
Crown: Screw-down crown
Case Back: Screw case back
Strap/Bracelet
Band Material: Stainless steel
Clasp: Three-fold clasp with secure lock, push button release with extender
Durability
Water Resistance: 200 meters (20 BAR)
Weight: 180 g
LumiBrite: On hands, index(es), and bezel
