Seiko Cal. 4431 - 415

The Seiko 4431-415 represents an important milestone in Seiko's 1989 lineup. It features a Black dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-3485402cb80a]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1989

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