Seiko Cal. 5682 - 540

This Automatic model from 1975 features a 37mm Hardlex-Coated Steel case. With its 21mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-293c4d82db6b]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1975

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