Seiko Cal. 4557 - 640

Released in 1979, the Cal. 4557 with design code 640 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-37aa949ba540]

Also known as: Samurai, Pogue

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1979

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