Seiko Cal. 6310 - 318

The Seiko 6310-318 represents an important milestone in Seiko's 1989 lineup. Powered by the 6310 caliber with 25j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-ceb26cb873fb]

Also known as: Sportsmatic, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1989

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