Seiko Cal. 0748 - 638

This Spring Drive model from 1977 features a 41mm Hardlex-Coated Steel case. With its 21mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-5a8895e93260]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1977

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