Seiko Cal. 4428 - 737

This Quartz model from 1976 features a 41mm Stainless Steel case. It features a Green dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-a33f23ae3de2]

Also known as: Sumo, Emperor

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1976

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