Seiko Cal. 4431 - 620

The 4431-620 is a sought-after Quartz piece from Seiko's golden era. With its 19mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-8a47069ff0cb]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1972

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