Seiko Cal. 4435 - 318

This Spring Drive model from 1965 features a 44mm Two-Tone case. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-151b398bbbd9]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1965

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