Seiko Cal. 4550 - 975

This Spring Drive model from 1970 features a 42mm Titanium case. With its 21mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-07479adad994]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1970

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