Seiko Cal. 4440 - 946

This Spring Drive model from 1980 features a 40mm Gold-Plated case. With its 20mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-841924e04c98]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1980

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