Seiko Cal. 3813 - 912

The 3813-912 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3813 caliber with 33j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-ab7d38ad65c4]

Also known as: Golden Tuna, Arnie

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1974

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