Seiko Cal. 4590 - 538

The Seiko 4590-538 represents an important milestone in Seiko's 1969 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d7eb5eadfbe8]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1969

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