Seiko Cal. 4454 - 728

This Quartz model from 1978 features a 39mm PVD Black case. Powered by the 4454 caliber with 30j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-725c91ad31e9]

Also known as: UFO, World Timer

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1978

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