Seiko Cal. 5660 - 787

The 5660-787 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5660 caliber with 18j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-3828a47bcab0]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1992

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