Seiko Cal. 4531 - 540

This Hand-Winding model from 1990 features a 43mm PVD Black case. Powered by the 4531 caliber with 34j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-e051746f63e7]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1990

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