Seiko Cal. 6678 - 381

The Seiko 6678-381 represents an important milestone in Seiko's 1974 lineup. Powered by the 6678 caliber with 36j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-6056c2288a3e]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1974

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