Seiko Cal. 6389 - 244

The Seiko 6389-244 represents an important milestone in Seiko's 1971 lineup. Powered by the 6389 caliber with 18j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-153673418ac3]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1971

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