Seiko Cal. 6678 - 281

This Solar model from 1975 features a 46mm Stainless Steel case. Powered by the 6678 caliber with 17j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-7ffd09b119c3]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1975

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