Seiko Cal. 0740 - 660

The Seiko 0740-660 represents an important milestone in Seiko's 1975 lineup. Powered by the 0740 caliber with 27j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-a468354baf0b]

Also known as: Turtle

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1975

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