Seiko Cal. 5657 - 441

The 5657-441 is a sought-after Hand-Winding piece from Seiko's golden era. With its 19mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-229de39bce75]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1971

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