Seiko Cal. 4431 - 671

This Kinetic model from 1988 features a 41mm Titanium case. With its 18mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-535cae231a7d]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1988

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