Seiko Cal. 7131 - 710

Released in 1977, the Cal. 7131 with design code 710 was part of Seiko's domestic market collection. With its 20mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-71b31ce1fb48]

Also known as: Rally, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1977

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