Seiko Cal. 0781 - 521

This Spring Drive model from 1975 features a 41mm Hardlex-Coated Steel case. With its 19mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-eab3dbdfe175]

Also known as: Monster, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1975

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