Seiko Cal. 4439 - 649

The 4439-649 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4439 caliber with 29j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-0609636c8d17]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1988

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