Shown: reference SPB451J1 · Photo: Seiko
Seiko

Prospex SPB451J1 Reference SPB451J1

Overview

A 40 mm stainless steel case defines the Seiko Prospex SPB451J1. It runs on the Seiko calibre 6R55 with a 72 hour power reserve and is water resistant to 300 metres. One reference is listed, SPB451J1.

Prospex is Seiko's sports watch collection for activity at sea, on land and in the air. About the Seiko Prospex

Case diameter
40 mm
13 mm thick
Movement
Calibre 6R55
Water resistance
300 m
Power reserve
Approx. 72 hours(3 days)

Specifications

Specifications from Seiko. Last checked . Sources

Case

Diameter
40 mm
Thickness
13 mm
Lug width
20 mm
Crystal
Sapphire
Water resistance
300 m
Weight
168 g

Dial

Luminescence
LumiBrite on hands, index(es) and bezel

Movement

Calibre
Seiko 6R55
Type
Automatic with manual winding
Power reserve
Approx. 72 hours(3 days)
Jewels
24

Bracelet or strap

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

Not yet recorded: lug-to-lug, case back, shape, colour, indexes, hands, functions, years.

Sources

  • Seiko: case, water resistance, dial, movement, bracelet. View sources

Missing values are shown as not yet recorded, never estimated. How we source our data

MovementSeiko calibre 6R55Specifications and every watch that uses it

Prospex SPB451J1 questions

What size is the Seiko Prospex SPB451J1?

The Seiko Prospex SPB451J1 has a 40 mm case.

What movement does the Seiko Prospex SPB451J1 use?

It uses the Seiko calibre 6R55.

What is the Seiko Prospex SPB451J1 case made of?

The case is stainless steel.

Is the Seiko Prospex SPB451J1 water resistant?

It is rated to 300 m.

About the Seiko Prospex

Prospex is Seiko's sports watch collection for activity at sea, on land and in the air. Its diving models continue a line that began in 1965, when Seiko made Japan's first diver's watch, and current references include heritage models based on Seiko divers from 1965 and 1968. The range is organised into series including Sea, Land, the Speedtimer chronographs inspired by a 1969 model, the Marinemaster, which Seiko calls its flagship series for diver's watches, and the LX line. The current line-up includes mechanical time-only, GMT and chronograph models.

Sources: Seiko: Prospex, Seiko: Prospex 1965/1968/1970 Diver's Modern Re-interpretation, www.seikowatches.com