Seiko Cal. 0746 - 638

This Spring Drive model from 1997 features a 46mm Stainless Steel case. With its 22mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-ec5bb9a4edbd]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1997

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