Seiko Cal. 6387 - 997

This Spring Drive model from 1994 features a 37mm Stainless Steel case. With its 19mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-18a72ac553bf]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1994

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