Seiko Cal. 6318 - 420

The Seiko 6318-420 represents an important milestone in Seiko's 1979 lineup. Powered by the 6318 caliber with 29j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-d1bec7c5d876]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1979

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