Seiko Cal. 4540 - 960

This Spring Drive model from 1980 features a 41mm Hardlex-Coated Steel case. With its 21mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-4b56c1dff568]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1980

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