Seiko Cal. 4421 - 627

This Solar model from 1978 features a 40mm Gold-Plated case. Powered by the 4421 caliber with 29j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-d1218afabff5]

Also known as: Sumo, Crown

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1978

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