Seiko Cal. 5231 - 975

The Seiko 5231-975 represents an important milestone in Seiko's 1970 lineup. It features a White dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-3a4d3b87bc42]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1970

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