Seiko Cal. 4521 - 347

This Automatic model from 1996 features a 36mm Stainless Steel case. Powered by the 4521 caliber with 25j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-d7b269a4d25e]

Also known as: World Timer, Crown

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1996

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