Seiko Cal. 6351 - 689

The Seiko 6351-689 represents an important milestone in Seiko's 1979 lineup. Powered by the 6351 caliber with 22j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-e18d353dba7d]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1979

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