Seiko Prospex SPB453 – 1965 Heritage Diver’s Watch

The Seiko Prospex SPB453 is a rugged yet refined reinterpretation of Seiko’s original 1965 diver’s watch. Featuring a bold black dial paired with a unidirectional elapsed‑time bezel, this automatic timepiece offers professional‑grade dive performance in a compact 40 mm package. Powered by Seiko’s reliable Caliber 6R55 automatic movement with manual winding and approximately 72‑hour power reserve, the SPB453 combines enduring reliability with timeless style. Its 300 m water resistance, screw‑down crown, and curved sapphire crystal make it equally at home beneath the waves or on everyday wrists.

Specifications
Model: SPB453 / SPB453J1
Collection: Seiko Prospex 1965 Heritage Diver’s Watch
Movement: Automatic with manual winding — Seiko Caliber 6R55 (approx. 72‑hour power reserve)
Accuracy: +25 to −15 seconds per day
Jewels: 24
Case Material: Stainless steel
Case Diameter: 40.0 mm
Case Thickness: 13.0 mm
Lug‑to‑Lug: 46.4 mm
Crystal: Curved sapphire crystal with anti‑reflective coating on inner surface
Dial: Black with LumiBrite hands, indices, and bezel markers
Bezel: Unidirectional rotating elapsed time bezel
Bracelet: Stainless steel with three‑fold clasp and secure lock plus extender
Lug Width: 20 mm Water Resistance: 300 m / 30 bar (ISO diver’s standard)
Weight: Approx. 168 g
Features:
- Date display
- Screw‑down crown and case back
- LumiBrite on hands and markers