Seiko Cal. 5257 - 635

Released in 1983, the Cal. 5257 with design code 635 was part of Seiko's domestic market collection. It features a Black dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-2adb8400fa7f]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

35mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1983

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