Seiko Cal. 4437 - 136

This Quartz model from 1978 features a 36mm PVD Black case. It features a White dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-24293d64e7f2]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1978

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