Seiko Cal. 0748 - 578

This Spring Drive model from 1970 features a 39mm Hardlex-Coated Steel case. With its 21mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-2bda9e93df9e]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1970

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