Seiko Cal. 6678 - 693

This Hand-Winding model from 1976 features a 34mm PVD Black case. With its 22mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-7f84e8736509]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1976

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