Seiko Cal. 4520 - 437

The Seiko 4520-437 represents an important milestone in Seiko's 1988 lineup. Powered by the 4520 caliber with 22j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-ebcdb41df595]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1988

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