Seiko Cal. 5230 - 918

The Seiko 5230-918 represents an important milestone in Seiko's 1977 lineup. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-dbb9878bfbf9]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1977

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