Seiko Cal. 7178 - 668

The Seiko 7178-668 represents an important milestone in Seiko's 1969 lineup. Powered by the 7178 caliber with 27j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-7217af1206a1]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1969

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