Seiko Cal. 6311 - 981

Released in 1978, the Cal. 6311 with design code 981 was part of Seiko's domestic market collection. With its 21mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-348d30e8e734]

Also known as: Bullhead, Emperor

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Cream

Jewels

19j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1978

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