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Generated illustration of the Seiko Prospex SPB453 SPB453: round case, 40 mm, unconfirmed dial, rotating dive bezel, bracelet strap.

Plate 412. Illustration generated from this record, not a photograph. No lettering or logos. Colours are approximate. Same scale on every plate.

a Bezel
rotating dive
b Dial
unconfirmed, markers: batons, with date
c Case
stainless steel, round
d Strap
bracelet, steel

Seiko · Dive

Prospex SPB453

Ref. SPB453

Machine translation pending human review. Figures and sources match the original.

Successor to the SPB143: it rises to 300 m and 72 hours of reserve and moves the date between 4 and 5.

US$1,300

Official list price · Nov 2026 · Source: seikowatches.com

Why it matters

  • First 300 m in Prospex non-saturation watches, according to Seiko
  • Calibre 6R55
  • Launched in June 2024

Specifications

Line
Prospex 1965 Heritage
Year
2024
Status
In production
Range
Mid-range
Diameter
40 mm
Thickness
13 mm
Material
stainless steel
Shape
round
Dial
unconfirmed
Markers
batons
Date
Yes
Bezel
rotating dive
Strap
bracelet, steel
Calibre
6R55
Movement
Automatic
Power reserve
72 h
Frequency
21,600 vph
Jewels
24
Water resistance
300 m
Complications
hours, minutes, seconds, date

Across the Archive

Diameter40 mmAbove 37% of 447 watches with this figure
Thickness13 mmAbove 66% of 363 watches with this figure
Power reserve72 hAbove 72% of 348 watches with this figure
Frequency21,600 vphAbove 7% of 274 watches with this figure
Water resistance300 mAbove 89% of 386 watches with this figure
PriceUS$1,300 · Nov 2026Above 44% of 127 prices in USD. Log scale.

Where to buy

A search for this reference at retailers. TicTemple does not sell watches or check stock. Links go live once we join each programme.

Sources

  1. seikowatches.com
  2. seikowatches.com

Record confidence: high. Based on an official source. Anything unverified is shown as “unconfirmed”, never estimated.

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