Seiko Cal. 6657 - 742

The 6657-742 is a sought-after Solar piece from Seiko's golden era. With its 19mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-aaed5871cc33]

Also known as: Monster

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1994

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