Seiko Cal. 5657 - 661

The Seiko 5657-661 represents an important milestone in Seiko's 1987 lineup. With its 18mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-ef5b208d3b40]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1987

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