Seiko Cal. 5657 - 178

The Seiko 5657-178 represents an important milestone in Seiko's 1987 lineup. With its 19mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-2cd607be731a]

Also known as: Emperor, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1987

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