Seiko Cal. 4457 - 720

This Spring Drive model from 1976 features a 40mm PVD Black case. It features a White dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-27e07c75f803]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1976

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