Seiko Cal. 6331 - 287

The Seiko 6331-287 represents an important milestone in Seiko's 1970 lineup. It features a White dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-8842cc8f9a2a]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1970

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