Seiko Cal. 3813 - 820

The 3813-820 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3813 caliber with 26j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-6337af459dd4]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1986

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