Seiko Cal. 6378 - 145

This Solar model from 1978 features a 41mm Hardlex-Coated Steel case. With its 20mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-928dd822f849]

Also known as: Rally, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1978

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