Seiko Cal. 3813 - 381

This Automatic model from 1971 features a 35mm Titanium case. Powered by the 3813 caliber with 24j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-7a01435acad1]

Also known as: Turtle

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1971

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