Seiko Cal. 3815 - 574

This Automatic model from 1970 features a 36mm Titanium case. Powered by the 3815 caliber with 19j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-bc6357cc1b2a]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1970

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