Seiko Cal. 4431 - 366

The Seiko 4431-366 represents an important milestone in Seiko's 1989 lineup. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-37cf94a40d25]

Also known as: Goldfeather

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1989

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