Seiko Cal. 4518 - 634

The Seiko 4518-634 represents an important milestone in Seiko's 1981 lineup. Powered by the 4518 caliber with 24j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-76c78cfda4eb]

Also known as: Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1981

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