Seiko Cal. 6310 - 404

The Seiko 6310-404 represents an important milestone in Seiko's 1988 lineup. With its 21mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-10a2526cddc9]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1988

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