Seiko Cal. 6389 - 510

The Seiko 6389-510 represents an important milestone in Seiko's 1978 lineup. Powered by the 6389 caliber with 26j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-1bcf8235dd03]

Also known as: Turtle, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1978

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