Seiko Cal. 4521 - 240

The Seiko 4521-240 represents an important milestone in Seiko's 1979 lineup. Powered by the 4521 caliber with 21j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-6fd9a887ed9b]

Also known as: Pogue

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1979

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