Seiko Cal. 4525 - 401

The Seiko 4525-401 represents an important milestone in Seiko's 1969 lineup. Powered by the 4525 caliber with 28j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-31222fe2dfbd]

Also known as: Sumo, Pogue

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1969

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