Seiko Cal. 6338 - 278

The Seiko 6338-278 represents an important milestone in Seiko's 1971 lineup. Powered by the 6338 caliber with 33j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-fe0f0973ba6b]

Also known as: Sumo, Silverwave

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1971

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