Seiko Cal. 4437 - 988

The Seiko 4437-988 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-eaec35909cbc]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1978

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