Seiko Cal. 4439 - 634

The Seiko 4439-634 represents an important milestone in Seiko's 1991 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-8b0dc48643bd]

Also known as: Monster, Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1991

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