Seiko Cal. 7170 - 851

The 7170-851 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7170 caliber with 20j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-35ccb6b7b43f]

Also known as: Bellmatic, Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1982

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