Seiko Cal. 4457 - 527

The Seiko 4457-527 represents an important milestone in Seiko's 1970 lineup. Powered by the 4457 caliber with 28j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-a19341ffd3fc]

Also known as: Rally, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1970

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