Seiko Cal. 5661 - 178

The 5661-178 is a sought-after Quartz piece from Seiko's golden era. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-c92bb971e21f]

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1977

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