Seiko Cal. 3866 - 827

This Automatic model from 1978 features a 43mm Two-Tone case. With its 22mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-d9bfcc247dec]

Also known as: Samurai, Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1978

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