Seiko Cal. 4540 - 715

This Spring Drive model from 1967 features a 34mm Titanium case. Powered by the 4540 caliber with 31j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-7045d92edebc]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1967

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