Seiko Cal. 5658 - 109

The Seiko 5658-109 represents an important milestone in Seiko's 1965 lineup. With its 20mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-9bda318c97c1]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

42mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1965

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