Seiko Cal. 4412 - 100

This Hand-Winding model from 1973 features a 40mm Two-Tone case. With its 20mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-7ca55866f2c5]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1973

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