Seiko Cal. 3811 - 731

The 3811-731 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3811 caliber with 30j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-4a36be219893]

Also known as: Rally

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

30j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1969

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