Seiko Cal. 3887 - 327

This Spring Drive model from 1969 features a 45mm PVD Black case. With its 20mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-49c78c584a3b]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1969

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