Seiko Cal. 5657 - 770

The Seiko 5657-770 represents an important milestone in Seiko's 1982 lineup. It features a Black dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-320de470cb86]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1982

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