Seiko Cal. 5640 - 426

The Seiko 5640-426 represents an important milestone in Seiko's 1987 lineup. It features a Green dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-44a490daf361]

Also known as: Pogue

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1987

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