Seiko Prospex Automatic – SPB451

Seiko Prospex Automatic – SPB451

SKU: 001-545-11680

Regular price $1,300.00

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The Seiko Prospex SPB451 1965 Heritage Diver's watch epitomizes the convergence of classic aesthetics and contemporary advancements, catering to both diving aficionados and everyday wearers alike. Constructed from robust stainless steel, its 40.0mm case boasts a slim profile, measuring 13.0mm in thickness and 46.4mm lug-to-lug, ensuring durability without sacrificing comfort. Shielded by a curved sapphire crystal with an inner anti-reflective coating, the watch guarantees exceptional clarity under varying lighting conditions.

At the heart of this timepiece lies the automatic Caliber 6R55 movement, renowned for its precision and reliability. With 24 jewels and a remarkable power reserve of approximately 72 hours, it offers consistent and accurate timekeeping, with a daily deviation of just +25 to -15 seconds. Enhanced by Lumibrite technology, the hands, indexes, and bezel markers illuminate brightly in low-light environments, ensuring effortless readability.

Designed to withstand the rigors of underwater exploration, the SPB451 boasts impressive water resistance up to 300 meters, making it suitable for professional diving activities. Additionally, its magnetic resistance of 4,800 A/m ensures reliable performance even in magnetically charged environments. Practical features such as the unidirectional rotating bezel, screw-down crown, and screw case back further contribute to its robustness and functionality.

For added convenience and security, the watch is equipped with a three-fold clasp featuring a secure lock and push-button release, complemented by an extender for effortless adjustability. Beyond its utilitarian aspects, the SPB451 exudes timeless elegance, seamlessly transitioning from the depths of the ocean to everyday urban adventures.

The Seiko Prospex SPB451 embodies the spirit of exploration and craftsmanship, marrying classic design elements with cutting-edge technology to deliver a timepiece that is as versatile as it is reliable. Whether submerged in the depths of the sea or adorning the wrist in daily life, this watch is a testament to Seiko's commitment to excellence in both form and function.
Band Bracelet
Band Material Stainless Steel
Caliber 6R55
Case Material Stainless Steel
Case Size 40mm
Case Thickness 13.0mm
Caseback Closed
Clasp Three-fold
Collection Prospex
Crystal Sapphire Crystal
Dial Blue
Function Date
Gender Men's
Lug Width 20mm
Lug-to-Lug 46.4mm
Movement Automatic
Power Reserve 72 Hours
Water Resistance 300m


Little Treasury Jewelers is the watch and jewelry store destination for the greater Baltimore-Annapolis area. Providing a piece for all of life’s occasions, offering a collection of wedding and engagement jewelry, fine timepieces, children’s jewelry, and gifts. With a selection of fine watches unequaled in the area, international jewelry designers, and a repair facility on the premise, Little Treasury is truly a “hidden gem” in Maryland.