Seiko Cal. 5666 - 998

The 5666-998 is a sought-after Solar piece from Seiko's golden era. Powered by the 5666 caliber with 26j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-68f8a7b568e1]

Also known as: UFO, Golden Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1997

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