Seiko Cal. 5658 - 616

This Spring Drive model from 1970 features a 43mm Titanium case. With its 19mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-42e4773318bb]

Also known as: Monster, Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1970

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