SPB451J1
The Seiko Prospex SPB451J1 1965 Revival Diver’s 3-Day 300M Men Watch pays tribute to Seiko’s first diver’s watch while enhancing it with modern engineering. Featuring a 40mm stainless steel case with curved sapphire crystal and a striking blue dial, it delivers both vintage charm and robust durability. Powered by the Calibre 6R55 automatic movement, it offers a 72-hour power reserve, screw-down crown, and 300-meter water resistance. With Lumibrite hands and markers and a unidirectional rotating bezel, this diver’s watch is built for serious underwater performance and everyday versatility.
Movement
Calibre: 6R55
Movement Type: Automatic with manual winding
Accuracy: +25/-15 seconds per day
Power Reserve: Approx. 72 hours
Jewels: 24
Functions
Stop seconds hand function
Dial & Hands
Dial Colour: Scuba Blue
LumiBrite: On hands, indexes, and bezel
Case
Case Material: Stainless steel with super-hard coating
Case Diameter: 40.0mm
Case Thickness: 13.0mm
Case Length (Lug-to-lug): 46.4mm
Lug Width: 20.0mm
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
Strap/Bracelet: Stainless steel
Clasp: Three-fold clasp with secure lock, push-button release, and extender
Durability
Water Resistance: 300m / 1000ft diver’s
Magnetic Resistance: 4,800 A/m
Weight: 168.0g
For online purchase, you can have bracelet or leather strap adjustments done at any City Chain store. Please bring along your warranty book for the service.