Seiko Cal. 3816 - 157

This Spring Drive model from 1978 features a 46mm Hardlex-Coated Steel case. With its 21mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-b6b399bb2d74]

Also known as: Arnie, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1978

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