Seiko Cal. 3813 - 595

This Quartz model from 1968 features a 38mm PVD Black case. Powered by the 3813 caliber with 36j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-b6d4654fab05]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1968

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