Seiko Cal. 6632 - 328

This Spring Drive model from 1968 features a 45mm PVD Black case. With its 18mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-2379de6511f2]

Also known as: Monster, Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1968

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