Seiko Cal. 6678 - 400

The Seiko 6678-400 represents an important milestone in Seiko's 1972 lineup. It features a Green dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-3c3adbd7cd9c]

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1972

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