Seiko Cal. 3813 - 883

The 3813-883 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3813 caliber with 25j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-5b7847bff8f8]

Also known as: Sumo, Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

46mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1967

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