Seiko Cal. 3821 - 510

This Spring Drive model from 1978 features a 38mm PVD Black case. With its 22mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-b232af03cc4f]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1978

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