Seiko Cal. 6387 - 468

This Spring Drive model from 1974 features a 45mm Stainless Steel case. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-ae27783ed74d]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1974

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