Seiko Cal. 5657 - 827

Released in 1985, the Cal. 5657 with design code 827 was part of Seiko's domestic market collection. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-fa2ef4f89924]

Also known as: Tuna, Bullhead

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1985

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