Seiko Cal. 4457 - 405

The Seiko 4457-405 represents an important milestone in Seiko's 1971 lineup. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-a9bb4034305d]

Also known as: Helmet, Bellmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1971

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