Seiko Cal. 4450 - 728

This Spring Drive model from 1975 features a 34mm Two-Tone case. With its 20mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-45feb4515db6]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1975

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