Seiko Cal. 6291 - 878

Released in 1971, the Cal. 6291 with design code 878 was part of Seiko's domestic market collection. Powered by the 6291 caliber with 36j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-b594a1bd8f7a]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1971

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