Seiko Cal. 4540 - 381

This Automatic model from 1979 features a 39mm Titanium case. Powered by the 4540 caliber with 19j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-6ae6b2ca7cbc]

Also known as: Turtle

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1979

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