Seiko Cal. 4420 - 510

This Solar model from 1990 features a 35mm Hardlex-Coated Steel case. Powered by the 4420 caliber with 26j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-b1eaac32c417]

Also known as: Crown, Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1990

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