Seiko Cal. 3815 - 956

This Spring Drive model from 1978 features a 38mm Hardlex-Coated Steel case. With its 19mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-aa290c0f129c]

Also known as: UFO, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1978

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