Seiko Cal. 3813 - 404

The Seiko 3813-404 represents an important milestone in Seiko's 1965 lineup. Powered by the 3813 caliber with 35j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-ace1c8d73302]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1965

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