Seiko Cal. 4520 - 257

Released in 1983, the Cal. 4520 with design code 257 was part of Seiko's domestic market collection. With its 21mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-6ddf5636bc58]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1983

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