Seiko Cal. 6311 - 406

Released in 1983, the Cal. 6311 with design code 406 was part of Seiko's domestic market collection. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-d7f20ea5dcf3]

Also known as: Tuna, UFO

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1983

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