Seiko Cal. 6658 - 339

This Solar model from 1970 features a 41mm PVD Black case. With its 20mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-a29f63cbeeff]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1970

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