Seiko Cal. 6670 - 538

Released in 1969, the Cal. 6670 with design code 538 was part of Seiko's domestic market collection. With its 21mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-ca4247852cff]

Also known as: Monster, Silverwave

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1969

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