Seiko Cal. 5287 - 738

The Seiko 5287-738 represents an important milestone in Seiko's 1968 lineup. With its 21mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-fe7648afe43c]

Also known as: Helmet, Flighty

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1968

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