Seiko Cal. 3813 - 726

The Seiko 3813-726 represents an important milestone in Seiko's 1989 lineup. Powered by the 3813 caliber with 33j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-600773e36385]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1989

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