Seiko Cal. 4437 - 521

The 4437-521 is a sought-after Solar piece from Seiko's golden era. With its 22mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-fc5210d02937]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1999

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