Seiko Cal. 4447 - 406

The 4447-406 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-fd0208e7ca46]

Also known as: Samurai, Monster

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1987

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