Seiko Cal. 4495 - 531

This Automatic model from 1987 features a 44mm PVD Black case. Powered by the 4495 caliber with 20j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-2214c1a02403]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1987

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