Seiko Cal. 4439 - 966

The 4439-966 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4439 caliber with 19j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-e78e4f1dc3dd]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1972

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