Seiko Cal. 4543 - 300

The 4543-300 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-878e8cb1bd44]

Also known as: Helmet, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1967

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