Seiko Cal. 6655 - 750

This Spring Drive model from 1970 features a 45mm Titanium case. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-5aed1bc20598]

Also known as: Monster, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1970

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