Seiko Cal. 4427 - 590

The Seiko 4427-590 represents an important milestone in Seiko's 1965 lineup. It features a White dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-b9e708a5642e]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1965

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