Seiko Cal. 3831 - 396

This Hand-Winding model from 1985 features a 44mm Hardlex-Coated Steel case. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-68ce38dbac37]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1985

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