Seiko Cal. 6678 - 548

This Solar model from 1978 features a 39mm Stainless Steel case. Powered by the 6678 caliber with 27j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-c3ea8a56ee77]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1978

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