Seiko Cal. 4431 - 145

The 4431-145 is a sought-after Kinetic piece from Seiko's golden era. With its 21mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-bd34fd2d85fb]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1974

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