Seiko Cal. 4540 - 780

This Spring Drive model from 1991 features a 34mm Titanium case. With its 19mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-611c06718b3d]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1991

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