Seiko Cal. 6316 - 290

This Spring Drive model from 1972 features a 42mm Hardlex-Coated Steel case. With its 22mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-a97df6240b5a]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1972

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