Seiko Cal. 3825 - 813

This Quartz model from 1977 features a 36mm PVD Black case. With its 21mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-10ce6387bec8]

Also known as: Sumo, Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1977

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