Seiko Cal. 4431 - 765

The Seiko 4431-765 represents an important milestone in Seiko's 1971 lineup. With its 22mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-382eafe54c5f]

Also known as: Emperor, Arnie

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1971

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