Seiko Cal. 4431 - 275

This Quartz model from 1974 features a 40mm Two-Tone case. With its 18mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-acf0fcb230f8]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1974

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