Seiko Cal. 3876 - 928

This Spring Drive model from 1969 features a 42mm Hardlex-Coated Steel case. With its 20mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-79226a1ff172]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1969

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