Seiko Cal. 6635 - 578

This Hand-Winding model from 1987 features a 39mm PVD Black case. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-37ea204aea55]

Also known as: Monster, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1987

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