Seiko Cal. 4431 - 186

This Kinetic model from 1979 features a 45mm PVD Black case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-4980cd715198]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1979

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