Seiko Cal. 7040 - 359

This Spring Drive model from 1978 features a 37mm PVD Black case. With its 22mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-84314b074737]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1978

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