Seiko Cal. 4537 - 521

This Kinetic model from 1966 features a 45mm Titanium case. With its 19mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-909e3a8190f1]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1966

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