Seiko Cal. 4521 - 642

The 4521-642 is a sought-after Hand-Winding piece from Seiko's golden era. With its 19mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-a1ee950444dd]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1966

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