Seiko Cal. 3897 - 251

This Hand-Winding model from 1965 features a 45mm Stainless Steel case. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-7db1f1e16dc3]

Also known as: Helmet, Rally

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1965

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