Seiko Cal. 3813 - 423

This Solar model from 1965 features a 42mm PVD Black case. Powered by the 3813 caliber with 20j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-e1cefdcb57b0]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1965

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