Seiko Cal. 5658 - 698

Released in 1976, the Cal. 5658 with design code 698 was part of Seiko's domestic market collection. With its 20mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-5f3954ef44ee]

Also known as: Helmet, UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1976

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