Seiko Cal. 5642 - 257

Released in 1996, the Cal. 5642 with design code 257 was part of Seiko's domestic market collection. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-951ccd0fd903]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1996

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