Seiko Cal. 4443 - 510

This Spring Drive model from 1981 features a 37mm Two-Tone case. It features a White dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-1718644c1610]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1981

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