Seiko Cal. 4447 - 240

This Quartz model from 1971 features a 41mm Titanium case. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-f12690b0813e]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1971

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