Seiko Cal. 6166 - 171

The 6166-171 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6166 caliber with 27j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-c9b4aa1d6549]

Also known as: Helmet, Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1994

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