Seiko Cal. 4431 - 157

The Seiko 4431-157 represents an important milestone in Seiko's 1966 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-7b06517ad6fc]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1966

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