Seiko Cal. 7040 - 680

Released in 1988, the Cal. 7040 with design code 680 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-b91dd5ce9eb0]

Also known as: Monster, Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1988

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