Seiko Cal. 7040 - 642

The Seiko 7040-642 represents an important milestone in Seiko's 1987 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-b03f15fe0758]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1987

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