Seiko Cal. 5666 - 845

The 5666-845 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5666 caliber with 25j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-505707a63db9]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1978

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