Seiko Cal. 4439 - 727

The Seiko 4439-727 represents an important milestone in Seiko's 1970 lineup. It features a Black dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-74443914b55e]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1970

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