Seiko Cal. 6391 - 904

This Quartz model from 1978 features a 41mm Stainless Steel case. With its 20mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-e28e140af76f]

Also known as: Samurai, Flighty

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1978

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