Seiko Cal. 4518 - 180

Released in 1981, the Cal. 4518 with design code 180 was part of Seiko's domestic market collection. Powered by the 4518 caliber with 31j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-833bd980ec20]

Also known as: Monster, Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1981

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