Seiko Cal. 5658 - 607

This Hand-Winding model from 1972 features a 40mm PVD Black case. With its 21mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-537e13968b01]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1972

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