Seiko Cal. 4540 - 318

The Seiko 4540-318 represents an important milestone in Seiko's 1980 lineup. Powered by the 4540 caliber with 34j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-0f1635ca1350]

Also known as: Monster, Shogun

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1980

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