Seiko Cal. 4437 - 404

The 4437-404 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4437 caliber with 19j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-2f860e879b27]

Also known as: Panda, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

19j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1992

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