Seiko Cal. 0731 - 442

This Kinetic model from 1987 features a 42mm Stainless Steel case. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-22e69ff8ae0f]

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1987

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