Seiko Cal. 4531 - 201

This Automatic model from 1997 features a 36mm PVD Black case. Powered by the 4531 caliber with 18j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-75f518d003d2]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1997

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