Seiko Cal. 4431 - 511

The Seiko 4431-511 represents an important milestone in Seiko's 1973 lineup. Powered by the 4431 caliber with 36j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-4cff1807a248]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1973

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