Seiko Cal. 4431 - 235

The 4431-235 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4431 caliber with 24j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-da9ab2be9f6a]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1969

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