Seiko Cal. 5271 - 237

The Seiko 5271-237 represents an important milestone in Seiko's 1968 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-063f380ae214]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1968

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