Seiko Cal. 3850 - 523

This Automatic model from 1970 features a 43mm Titanium case. Powered by the 3850 caliber with 26j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-aa6a90c0d560]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1970

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