Seiko Cal. 5646 - 149

This Spring Drive model from 1966 features a 34mm Titanium case. With its 20mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-7614dffa0e83]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1966

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