Seiko Cal. 5690 - 310

The Seiko 5690-310 represents an important milestone in Seiko's 1988 lineup. With its 22mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-225ce99fef45]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1988

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