Seiko Cal. 4423 - 721

This Solar model from 1987 features a 38mm PVD Black case. Powered by the 4423 caliber with 31j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-1fe48c907e7e]

Also known as: Rally

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1987

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