Seiko Cal. 4418 - 538

The 4418-538 is a sought-after Solar piece from Seiko's golden era. Powered by the 4418 caliber with 18j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-e4fcc0d08531]

Also known as: UFO, Sportsmatic

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1993

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