Seiko Cal. 4556 - 242

This Spring Drive model from 1998 features a 40mm Stainless Steel case. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-896eb27e8fce]

Also known as: Tuna, Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1998

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