Seiko Cal. 3813 - 496

The 3813-496 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3813 caliber with 31j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-f78657743cfd]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1979

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