Seiko Cal. 5640 - 928

The Seiko 5640-928 represents an important milestone in Seiko's 1986 lineup. It features a White dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-51afb8d1d6ef]

Also known as: Rally, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1986

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