Seiko Cal. 6311 - 375

Released in 1980, the Cal. 6311 with design code 375 was part of Seiko's domestic market collection. With its 18mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-6fa0af6a9e14]

Also known as: Tuna, Sea Horse

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1980

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