Seiko Cal. 5647 - 421

This Kinetic model from 1977 features a 46mm Titanium case. With its 22mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-4b50973634a2]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

46mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1977

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