Seiko Cal. 4520 - 725

Released in 1965, the Cal. 4520 with design code 725 was part of Seiko's domestic market collection. With its 21mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-f4f6fddf31ed]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1965

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