Seiko Cal. 6388 - 975

The Seiko 6388-975 represents an important milestone in Seiko's 1974 lineup. Powered by the 6388 caliber with 34j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-5b467414835a]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1974

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