Seiko Cal. 4539 - 642

This Kinetic model from 1971 features a 40mm Titanium case. Powered by the 4539 caliber with 17j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-e5b87313e416]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1971

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