Seiko Cal. 3871 - 330

This Hand-Winding model from 1971 features a 36mm Stainless Steel case. With its 20mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-5d5422472e17]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1971

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