Seiko Cal. 4456 - 256

The Seiko 4456-256 represents an important milestone in Seiko's 1971 lineup. It features a Black dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-730a4d43ad08]

Also known as: Helmet, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1971

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