Seiko – Prospex Sea 100th Anniversary 1965 Heritage Diver’s – SPB455 Online Sale

Seiko – Prospex Sea 100th Anniversary 1965 Heritage Diver’s – SPB455

Seiko Brand 100th Anniversary 1965 Heritage Diver’s Watch Special Edition

Since the beginning of Seiko in 1881, the company has continued to innovate in line with
the founder’s philosophy to be “Always one step ahead of the rest.” 

In 1924, the company introduced the first wristwatch with Seiko on the dial, signifying
the beginning of the Seiko brand. 

The year 2024 marks the 100th anniversary of this landmark event. 

In celebration, a third creation with a charcoal-grey colored dial is being introduced as
a special edition.

The special edition comes with an additional strap made entirely of recycled plastic
bottles. It was created using a traditional Japanese braiding technique called Seichu. 

The strap presents a uniquely Japanese aesthetic and texture & is specially
manufactured to have a tensile strength nearly four times that of regular Seiko
fabric straps*. Its strength and resistance to the degradation caused by exposure
to sunlight meet the demanding standards required of Seiko diver’s watches.
Thanks to its unique braiding pattern, the strap has the flexibility and air permeability
 to ensure maximum comfort on the wrist.

Movement
Caliber Number: 6R55
Movement Type: Automatic with manual winding
Power reserve: 72 hours / 3 days
Jewels: 24
Functions: Stop second hand function

Case 
Material: Stainless steel
Thickness: 13 mm
Diameter: 40 mm
Lug-to-lug: 46.4 mm
Between lugs: 20 mm

Crystal
Material: Curved sapphire
Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on hands, indexes & bezel

Clasp
Three-fold clasp with secure lock , push button 
release with extender

Other Details
Water Resistance: 300 m / 1000 ft 
Magnetic Resistance: 4,800 A/m
Weight: 168 g

Features
Unidirectional rotating bezel
Screw-down crown
Three-fold clasp with secure lock
Screw case back