Seiko Cal. 4540 - 118

This Spring Drive model from 1974 features a 37mm PVD Black case. Powered by the 4540 caliber with 33j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-27a4c75139cf]

Also known as: UFO, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1974

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