Seiko Cal. 4456 - 564

Released in 1985, the Cal. 4456 with design code 564 was part of Seiko's domestic market collection. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-3d390cc80ada]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1985

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