Seiko Cal. 4531 - 137

This Kinetic model from 1993 features a 40mm PVD Black case. Powered by the 4531 caliber with 25j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-61a9c17bf0d7]

Also known as: Helmet, Sea Horse

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1993

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