Seiko Cal. 3813 - 941

The Seiko 3813-941 represents an important milestone in Seiko's 1966 lineup. Powered by the 3813 caliber with 20j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-51c71d658500]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1966

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