Seiko Cal. 5643 - 451

This Solar model from 1971 features a 39mm Titanium case. With its 19mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-ce7731db64d6]

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1971

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