Seiko Cal. 6615 - 591

This Solar model from 1978 features a 34mm Hardlex-Coated Steel case. With its 20mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-a18e3762b5fb]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1978

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