Seiko Cal. 6170 - 239

The Seiko 6170-239 represents an important milestone in Seiko's 1991 lineup. Powered by the 6170 caliber with 21j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-f97b76cb8426]

Also known as: Helmet, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1991

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