Seiko Cal. 4440 - 828

This Spring Drive model from 1975 features a 38mm Stainless Steel case. It features a Green dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-df364787bfaa]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1975

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