Seiko Cal. 5651 - 164

This Spring Drive model from 1965 features a 44mm Two-Tone case. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-46c3a9312183]

Also known as: Helmet, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1965

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