Seiko Cal. 6311 - 339

Released in 1975, the Cal. 6311 with design code 339 was part of Seiko's domestic market collection. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-bc2af23a0df1]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1975

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