Seiko Cal. 4457 - 107

This Automatic model from 1971 features a 40mm PVD Black case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-e42fcc000a90]

Also known as: Tuna, Silverwave

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1971

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