Seiko Cal. 3893 - 660

The Seiko 3893-660 represents an important milestone in Seiko's 1991 lineup. Powered by the 3893 caliber with 23j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-ae2da3537509]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1991

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