Seiko Cal. 3811 - 240

The Seiko 3811-240 represents an important milestone in Seiko's 1968 lineup. Powered by the 3811 caliber with 22j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-ec18b08d9956]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1968

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