Seiko Cal. 4487 - 623

This Solar model from 1971 features a 35mm Titanium case. Powered by the 4487 caliber with 36j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-73e3a3b571b9]

Also known as: Rally, Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1971

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