Seiko Cal. 7131 - 326

Released in 1986, the Cal. 7131 with design code 326 was part of Seiko's domestic market collection. Powered by the 7131 caliber with 21j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-767642937ebf]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1986

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