Seiko Cal. 6391 - 678

This Solar model from 1978 features a 41mm Titanium case. With its 22mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-6b48810ec613]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1978

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