Seiko Cal. 4438 - 827

The 4438-827 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4438 caliber with 26j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-4c638f892ce9]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1992

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