Seiko Cal. 5240 - 453

The 5240-453 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5240 caliber with 27j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-94efb9bd835e]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1971

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