Seiko Cal. 4453 - 938

This Spring Drive model from 1968 features a 41mm PVD Black case. With its 19mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-fab6f455d65b]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1968

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