Seiko Cal. 6340 - 774

Released in 1978, the Cal. 6340 with design code 774 was part of Seiko's domestic market collection. With its 22mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-e00bbd34db90]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1978

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