Seiko Cal. 5687 - 973

This Spring Drive model from 1972 features a 45mm Hardlex-Coated Steel case. With its 20mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-633f8e45653d]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1972

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