Seiko Cal. 4530 - 770

This Solar model from 1990 features a 40mm PVD Black case. Powered by the 4530 caliber with 21j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-e9274571eb8d]

Also known as: Crown

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1990

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