Seiko Cal. 6670 - 817

The Seiko 6670-817 represents an important milestone in Seiko's 1978 lineup. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-0d3a48e7583c]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1978

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