Seiko Cal. 4428 - 285

This Solar model from 1991 features a 44mm Two-Tone case. Powered by the 4428 caliber with 20j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-89e21b6cfad3]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1991

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