Seiko Cal. 5642 - 489

The Seiko 5642-489 represents an important milestone in Seiko's 1975 lineup. Powered by the 5642 caliber with 18j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-9baa10337146]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1975

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