Seiko Cal. 4431 - 306

The 4431-306 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4431 caliber with 34j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-409fc4340f7a]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1987

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