Seiko Cal. 5660 - 892

This Automatic model from 1985 features a 36mm Two-Tone case. Powered by the 5660 caliber with 23j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-bd93e44ab654]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1985

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