Seiko Cal. 4518 - 284

The 4518-284 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4518 caliber with 21j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-011292bb8ce6]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1968

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