Seiko Cal. 4421 - 418

This Spring Drive model from 1998 features a 37mm Stainless Steel case. Powered by the 4421 caliber with 28j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-21b3a562a770]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1998

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