Seiko Cal. 4431 - 916

The 4431-916 is a sought-after Quartz piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-e1acb5fdb515]

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1966

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