Seiko Cal. 4412 - 222

This Hand-Winding model from 1973 features a 35mm Two-Tone case. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-94fdbf032762]

Also known as: Sumo, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1973

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