Seiko Cal. 4540 - 997

This Solar model from 1968 features a 44mm Two-Tone case. Powered by the 4540 caliber with 23j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-784ade3eae94]

Also known as: Turtle, Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1968

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