Seiko Cal. 5666 - 907

The 5666-907 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5666 caliber with 23j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-d15209b5c80d]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1992

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