Seiko Cal. 5658 - 226

The Seiko 5658-226 represents an important milestone in Seiko's 1965 lineup. With its 18mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-c3a3dedfe52a]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1965

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