Seiko Cal. 4457 - 522

The Seiko 4457-522 represents an important milestone in Seiko's 1972 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-07064e9f4ccc]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1972

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