Seiko Cal. 6158 - 851

The 6158-851 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6158 caliber with 23j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-a756bfb6f181]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1976

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