Seiko Cal. 4421 - 731

The 4421-731 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4421 caliber with 31j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-c974fe9a8cdf]

Also known as: Shogun, Arnie

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1969

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