Seiko Cal. 5621 - 404

The 5621-404 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-face1f630df0]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1993

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