Seiko Cal. 3897 - 391

This Spring Drive model from 1999 features a 41mm Stainless Steel case. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ecc858407346]

Also known as: Helmet, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1999

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