Seiko Cal. 4518 - 923

The Seiko 4518-923 represents an important milestone in Seiko's 1971 lineup. Powered by the 4518 caliber with 28j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-9c1bd05ce0a3]

Also known as: UFO, World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1971

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