Seiko Cal. 4488 - 939

The Seiko 4488-939 represents an important milestone in Seiko's 1965 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-5d378d5ae400]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1965

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