Seiko Cal. 5661 - 487

The Seiko 5661-487 represents an important milestone in Seiko's 1989 lineup. Powered by the 5661 caliber with 19j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-2758e5566002]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

19j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1989

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