Seiko Cal. 4431 - 199

This Quartz model from 1978 features a 36mm Two-Tone case. It features a Navy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-cf656bcd6121]

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

36mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1978

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