Seiko Cal. 5658 - 985

The Seiko 5658-985 represents an important milestone in Seiko's 1967 lineup. With its 18mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-4998d3b5e353]

Also known as: Tuna, Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1967

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