Seiko Cal. 6388 - 389

The Seiko 6388-389 represents an important milestone in Seiko's 1976 lineup. Powered by the 6388 caliber with 21j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-06243016560a]

Also known as: Navigator, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1976

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