Seiko Cal. 4419 - 528

This Spring Drive model from 1976 features a 37mm PVD Black case. It features a Champagne dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-0be04cff20f3]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1976

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